## Find the answers of all question at page 6

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11.               If 3 (x + 5y) = 24, find y when x = 3.

A.                  1

B.                  3

C.                  5

D.                  7

12.               If n is an integer, then which one of the following expressions must be even?

A.                  n + 1

B.                  n(n + 2)

C.                  n(n + 1)

D.                  n(n +4)

E.                   (n + 1)(n + 3)

13.               What is the effect on area of circle if its radius is c t down to half?

A.                  remains same

B.                  becomes half

C.                  becomes quarter

D.                  may or may not change

14.               A contractor has to build a bridge in 50 days. Initially he employed 20 men, but found that only half of the work has been completed in 30 days. How many more men he has to employ to finish the job in time?

A.                  30

B.                  10

C.                  15

D.                  20
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15.               A=1, B=4, C=7 and so on, then what does 13 stand for?

A.                  D

B.                  E

C.                  F

D.                  G