PRT PRT I 100 100 5000 R 3 ii. 810 810 100 100 150 R 810 R 5.4%
iii. Doubled here is taken to mean that the $5000 gains $5000 in interest and the
total being $10,000
PRT I 100 5000 5.4 T 5000 100 270T 5000 T 18.5
2. . a. . i.
a b a 4b
9 3
1*2 ii.
1*2 9 3, while 2*1 6 so the operation is not commutative a *b b a
b. .
3 2 x 5 i.
3 5 2 x
2 x 1 x
ii. c.
. i.
2 3 y 43 y 18.5
ii. Solutions are
x $12.50 y $6
3. . a. . i.
n P R 8
ii. M P {b, d } iii. M R
'
{k, b, v, s, w,t }
b. Part b is deliberately left blank: the reason is scalability errors due to page sizes and printer errors, it does not always give the diagram as intended
