Name: 11. Topical Test- Chapter 2 1.
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83, 89, y are are prim primee numb number erss are are arrang arranged ed in ascend ascending ing order order.. Find Find the value of x x + y. A 166 B 168 C 170 D 172
19, 38 38, p, q, 304, 304, .... ...... .. is a numb number er sequence. Evaluate p + q. A 76 B 152 C 228 D 310
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Given 6 a nd nd 7 ar are th the fa factors o f x x. The x is possible value of x A 48 B 56 C 126 D 140
Find Find the the lowes lowestt commo common n multi multipl plee (LCM (LCM)) of 24 and 40. A 72 B 80 C 96 D 120
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The sum sum of of al all the the pr prime ime fac facto torrs for for x is 15. What is x? A 18 B 21 C 26 D 32
Find Find the the high highes estt commo common n fact factor or (HCF (HCF)) of 16, 24 and 32. A 2 B 4 C 8 D 16
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Stat Statee all all the the prim primee fac facto tors rs of of 272 272.. A 2, 13 B 2, 17 C 2, 3, 13 D 3, 5, 17
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How many prime numbers are there between 100 and 125? A 5 B 6 C 7 D 8
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The The lowe lowest st comm common on mult multip iple le (LCM (LCM)) of 10, 18 and 24 is A 180 B 360 C 480 D 720
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Diagr iagram am 1 show hows a seque equenc ncee of pri prime numbers.
The pai pair of nu numbe mbers havi having ng th the high higheest common factor(HCF) of 6 is A 12 and 18 B 12 and 24 B 18 and 36 D 24 and 36 57, 68, p, 90, 101, q, 123, ........ is a number sequ sequen ence ce in asce ascend ndin ing g orde order. r. Find Find the the p+q. value of p A 161 B 187 C 191 D 201 The The firs firstt thre threee prim primee numb number erss whic which h are are greater than 100 are A 101, 103 an and 105 B 101, 103 and 107 C 103, 105 and 107 D 103, 107 an and 109 Which of the following numbers is the lowest common multiple(LCM) of 12, 32 and 48? A 96 B 192 C 284 D 384
41, 43, x, y, DIAGRAM 1 x + y Find the value of x A 100 C 96 18.
Diagra Diagram m 2 shows shows some some fact factors ors of 64
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If the the sum sum of al all the the pri prime fac factors of a certain number is 9, then the number is A 22 B 26 C 28 D 32
B 98 D 94
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DIAGRAM 2 Identify three other factors of 64. A 1, 8 and and 32 B 1, 8 and and 48 C 3, 8 and and 12 D 8, 12 and and 16
Which of the following is a common multiple of 6, 15 and 20? A 75 B 60 C 45 D 30
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Which of the following is a common multiple of 4 and 17? A 34 B 56 C 68 D 108
Whic hich of the the fol follow lowing is the the com common mon multiple of 4 and 12? A 64 B 76 C 88 D 96
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Given p – 3 is the highest common factor (HCF) of 28 and 42. Find the value of p. A 14 B 17 C 19 D 21
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