1.

If a - b = 3 and a^{2} + b^{2} = 29, find the value of ab.

A) 10

B) 12

C) 15

D) 18

2.

A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed :

A) 30 birds

B) 60 birds

C) 72 birds

D) 90 birds

3.

A student was asked to find the value of 3/8 of a sum of money. The student made a mistake by dividing the sum by 3/8 and thus got an answer which exceeded the correct answer by Rs. 55. The correct answer was :

A) Rs.9

B) Rs.18

C) Rs.24

D) Rs.64

4.

A certain amount is distributed among A, B and C. A gets 3/16 and B gets 1/4 of the whole amount. If C gets Rs. 81, then B gets :

A) Rs.30

B) Rs.32

C) Rs.36

D) Rs.40

5.

A 70 cm long wire is to be cut into two pieces such that one piece will be 2/5 as long as the other. How many centimetres will the shorter piece be ?

A) 10

B) 14

C) 20

D) 28

2023 by Examfriend.in. All Rights Reserved.