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Expert systems are well known area of artificial intelligence and have a huge impact in various fields of life. It has been widely used in managing uncertainty and vague information, which models the ability of humans to make rational decisions. One
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ENGINEERING ECONOMICS SET 1
simple interest of 6 % per ann"m Ans. P30,000.00
SIMPLE INTEREST
1. Find Find the the intere interest st on P6800.00 for 3 years at 11 % simple interest. Ans. P2,244.00 2. A man man borr borrow owed ed P10,000.00 from his friend and arees to pay at the end of !0 days "nder 8 % simple interest rate. #hat is the re$"ired amo"nt Ans. P10,200.00 3. Annie b"ys a tele&is tele&ision ion set from a mer'hant who o(ers P2),000.00 at the end of 60 days. Annie wishes to pay immediately and the mer'hant o(ers to 'omp"te the re$"ired amo"nt on the ass"mption that money is worth 14 % simple interest. #hat is the re$"ired amo"nt Ans. P24,42!.!* 4. #hat is the prin'ipal prin'ipal amo"nt if the amo"nt of interest at the end of 2 + year is P4)00 for a
). ow lon lon m"st m"st a P40, P40,000 000 note bearin 4 % simple interest r"n to amo"nt to P41,3)0.00 Ans. 304 days 6. -f P16,000 P16,000 earns earns P480 P480 in ! months, what is the ann"al rate of interest Ans. 4% *. A time time depo deposit sit of of P110,000 for 31 days earns P8!0.3! on mat"rity date after ded"'tin the 20 % withholdin ta on interest in'ome. Find the rate of interest per ann"m. Ans. 11.*) % 8. A ban/ ban/ 'har 'hares es 12 % simple interest on a P300.00 loan. ow m"'h will be repaid if the load is paid ba'/ in one l"mp s"m after three years. Ans. P408.00 !. A pri'e pri'e ta ta of P1200 P1200 is is spe'ied if paid within 60 days b"t o(ers a 3 % dis'o"nt for 'ash in 30
days. Find the rate of interest. Ans. 3*.11 % 10.-t is the pra'ti'e of almost all ban/ in the Philippines that when they rant a loan, the interest for one year is a"tomati'ally ded"'ted from the prin'ipal amo"nt "pon release on money to a borrower. et "s therefore ass"me that yo" applied for a loan with a ban/ and the P80000 was appro&ed at an interest rate of 14 % of whi'h P11200 was ded"'ted and yo" were i&en a 'he'/ of P68800. in'e yo" ha&e to pay the amo"nt of P80000 one year after, what then will be the e(e'ti&e interest rate Ans. 16.28 % 11.r. . de la 5r" borrowed money from a ban/. e re'ei&ed from the ban/ P1,340.00 and promised to pay P1,)00.00 at the end of ! months. 7etermine the simple interest rate and the 'orrespondin dis'o"nt rate or often
referred to as the 9an/ers dis'o"nt:. Ans. 1).!2 % ; 13.*3 % 12.A man borrowed borrowed from a ban/ "nder a promissory note that he sined in the amo"nt pf P2),000.00 for a period of one year. e re'ei&ed only the amo"nt of P21,!1).00 after the ban/ 'olle'ted the ad&an'e interest and an additional amo"nt of P8).00 for notarial and inspe'tion fees. #hat was the rate of interest that the ban/ 'olle'ted in ad&an'e Ans. 13.64 % 13.Anes Abanilla was ranted a loan of P20,000 by her employer 5P -nd"strial Fabri'ator and 5onstr"'tion 5orporation with an interest at 6 % for 180 days on the prin'ipal 'olle'ted in ad&an'e.
the pro'eeds on the note. Ans. P18,800 14.P4000 is borrowed borrowed for *) days at 16 % per ann"m simple interest. ow m"'h will be d"e at the end of *) days Ans. P4133.33 1).r. Almaro made a money mar/et pla'ement of P1,000,000 for 30 days at *.) % per year. -f the withholdin ta is 20 %, what is the net interest that r. Almaro will re'ei&e at the end of the month Ans. P)000
ENGINEERING ECONOMICS SET 2
16.A bill for motorboat spe'ies the 'ost as P1200 d"e at the end of 100 days b"t o(ers a 4 % dis'o"nt for 'ash in 30 days. #hat is the hihest rate, simple interest at whi'h the
b"yer 'an a(ord to borrow money in order to ta/e ad&antae of the dis'o"nt Ans. 21.4 % 1*.-n b"yin a 'omp"ter dis/, the b"yer was o(ered the options of payin P2)0 'ash at the end of 30 days or P2*0 at the end of 120 days. At what rate is the b"yer payin simple interest if he aree to pay at the end of 120 days. Ans. 32 % 18.Find the dis'o"nt if P2000 is dis'o"nted for 6 months at 8 % simple dis'o"nts. Ans. P80.00 1!.5omp"te the dis'o"nt if P2000 is dis'o"nted for 6 months at 8 % simple interest. Ans. P*6.!2 20.>n ar'h 1, 1!!6 r. Almaro obtains a loan of P1)00 from r. Abella and sins a note promisin to pay the prin'ipal and a''"m"lated simple interest at the rate of ) % at the end of 120 days.
>n ay 1), 1!!6, r. Abella dis'o"nts the note at the ban/ whose dis'o"nt rate is 6 %. #hat does he re'ei&ed Ans. P1)13.)6 21.A deposit of P110,000 was made for 31 days.
was the rate of dis'o"nt and the rate of interest that the ban/ 'olle'ted in ad&an'e. Ans. 4 % ; 4.1* % COMPOUND INTEREST
2).A''"m"late P),000.00 for 10 years at 8 % 'ompo"nded $"arterly. Ans. P11,040.20 26.A''"m"late P),000.00 for 10 years at 8 % 'ompo"nded semi = ann"ally. Ans. P10,!)).61 2*.A''"m"late P),000.00 for 10 years at 8 % 'ompo"nded monthly. Ans. P11,0!8.20 28.A''"m"lates P),000.00 for 10 years at 8 % 'ompo"nded ann"ally. Ans. P10,*!4.62 2!.ow lon will it ta/e P1,000 to amo"nt to P1,346 if in&ested at 6 % 'ompo"nded $"arterly Ans. ) years 30.ow lon will it ta/e for an in&estment to do"ble its amo"nt if in&ested at an interest rate of 6 % 'ompo"nded bi = monthly Ans. 12 years 2
the pro'eeds on the note. Ans. P18,800 14.P4000 is borrowed borrowed for *) days at 16 % per ann"m simple interest. ow m"'h will be d"e at the end of *) days Ans. P4133.33 1).r. Almaro made a money mar/et pla'ement of P1,000,000 for 30 days at *.) % per year. -f the withholdin ta is 20 %, what is the net interest that r. Almaro will re'ei&e at the end of the month Ans. P)000
ENGINEERING ECONOMICS SET 2
16.A bill for motorboat spe'ies the 'ost as P1200 d"e at the end of 100 days b"t o(ers a 4 % dis'o"nt for 'ash in 30 days. #hat is the hihest rate, simple interest at whi'h the
b"yer 'an a(ord to borrow money in order to ta/e ad&antae of the dis'o"nt Ans. 21.4 % 1*.-n b"yin a 'omp"ter dis/, the b"yer was o(ered the options of payin P2)0 'ash at the end of 30 days or P2*0 at the end of 120 days. At what rate is the b"yer payin simple interest if he aree to pay at the end of 120 days. Ans. 32 % 18.Find the dis'o"nt if P2000 is dis'o"nted for 6 months at 8 % simple dis'o"nts. Ans. P80.00 1!.5omp"te the dis'o"nt if P2000 is dis'o"nted for 6 months at 8 % simple interest. Ans. P*6.!2 20.>n ar'h 1, 1!!6 r. Almaro obtains a loan of P1)00 from r. Abella and sins a note promisin to pay the prin'ipal and a''"m"lated simple interest at the rate of ) % at the end of 120 days.
>n ay 1), 1!!6, r. Abella dis'o"nts the note at the ban/ whose dis'o"nt rate is 6 %. #hat does he re'ei&ed Ans. P1)13.)6 21.A deposit of P110,000 was made for 31 days.
was the rate of dis'o"nt and the rate of interest that the ban/ 'olle'ted in ad&an'e. Ans. 4 % ; 4.1* % COMPOUND INTEREST
2).A''"m"late P),000.00 for 10 years at 8 % 'ompo"nded $"arterly. Ans. P11,040.20 26.A''"m"late P),000.00 for 10 years at 8 % 'ompo"nded semi = ann"ally. Ans. P10,!)).61 2*.A''"m"late P),000.00 for 10 years at 8 % 'ompo"nded monthly. Ans. P11,0!8.20 28.A''"m"lates P),000.00 for 10 years at 8 % 'ompo"nded ann"ally. Ans. P10,*!4.62 2!.ow lon will it ta/e P1,000 to amo"nt to P1,346 if in&ested at 6 % 'ompo"nded $"arterly Ans. ) years 30.ow lon will it ta/e for an in&estment to do"ble its amo"nt if in&ested at an interest rate of 6 % 'ompo"nded bi = monthly Ans. 12 years 2
31.-f yo" borrowed borrowed P10,000 from a ban/ with 18 % interest per ann"m, what is the total amo"nt to be repaid at the end of one year Ans. P11,800.00 32.#hat is the e(e'ti&e rate for an interest rate of 12 % 'ompo"nded 'ontin"o"sly Ans. 12.*) % 33.ow lon will it ta/e for an in&estment to &efold its amo"nt if money is worth 14 % 'ompo"nded semi = ann"ally Ans. 12 34.An interest rate of 8 % 'ompo"nded semi = ann"ally is how many per'ent if 'ompo"nded $"arterly Ans. *.!2 % 3).A man is epe'tin to re'ei&e P4)0,000.00 at the end of * years. -f money is worth 14 % 'ompo"nded $"arterly, how m"'h is it worth at present Ans. P1*1,*44.4)
ann"al interest rate is 8 %. Ans. P1)2.8* ENGINEERING ECONOMICS SET 3
36.A man has a will of P6)0,000.00 from his father. -f his father deposited an amo"nt of P4)0,000.00 in a tr"st f"nd earnin 8 % 'ompo"nded ann"ally, after how many years will the man re'ei&e his will Ans. 4.*8 years 3*.r. Adam deposited P120,000.00 in a ban/ who o(ers 8 % interest 'ompo"nded $"arterly. -f the interest is s"b@e't to a 14 % ta, how m"'h will he re'ei&e after ) years Ans. P1*0,14!.** 38.#hat interest 'ompo"nded monthly is e$"i&alent to an interest rate of 14 % 'ompo"nded $"arterly Ans. 13.84 % 3!.#hat is the present worth of two P100.00 payments at the end of the third and the fo"rth year
40.A rm borrows borrows P2000.00 for 6 years at 8 %. At the end of 6 years, it renews the loan for the amo"nt d"e pl"s P2000 more for 2 years at 8 %. #hat is the l"mp s"m d"e. Ans. P6,034.66 41.At an ann"al rate of ret"rn of 8 %, what is the f"t"re worth of P1000 at the end of 4 years Ans. P1360.)0 42.A st"dent has money i&en by his randfather in the amo"nt of P20,000.00. ow m"'h money in the form of interest will he et if the money is p"t in a ban/ that o(ers 8 % rate 'ompo"nded ann"ally, at the end of * years Ans. P34,2*6.48 43.-f the interest rate on an a''o"nt is 11.) % 'ompo"nded yearly, approimately approimately how many years will it ta/e to triple the amo"nt
Ans. 10 years 44.
3
years in a 'ontin"o"sly 'ompo"nded a''o"nt Ans. P6,*)0.00 4!.A mer'hant p"ts in his P2,000.00 to a small b"siness for a period of si years. #ith a i&en interest rate on the in&estment of 1) % per year, 'ompo"nded ann"ally, how m"'h will he 'olle't at the end of the sith year Ans. P4,626.00 )0.A person in&ests P4,)00.00 to be 'olle'ted in 8 years. i&en that the interest rate on the in&estment is 14.) % per year 'ompo"nded ann"ally, what s"m will be 'olle'ted in 8 years Ans. P13,2!4.02 )1.-n year ero, yo" in&est P10,000.00 in a 1) % se'"rity for ) years. 7"rin that time, the a&erae ann"al inBation is 6 %. ow m"'h, in terms of year ero pesos, will be in the a''o"nt at the mat"rity Ans. P1),030.00
)2.A 'ompany in&ests P10,000.00 today to be repaid in &e years in one l"mp s"m at 12 % 'ompo"nded ann"ally. -f the rate of inBation is 3 % 'ompo"nded ann"ally, how m"'h prot in present day pesos is realied o&er &e years Ans. P),202.00 )3.5omp"te the e(e'ti&e rate for an interest rate of 16 % 'ompo"nded ann"ally. Ans. 16 % )4.5omp"te the e(e'ti&e rate for an interest rate of 16 % 'ompo"nded $"arterly. Ans. 16.!8 %
ENGINEERING ECONOMICS SET 4
)).5on&ert 12 % 'ompo"nded semi = ann"ally to % 'ompo"nded $"arterly. Ans. 11.83 %