31. In a group of buffaloes and ducks, the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group?
(A) 6
(B) 8
(C) 10
(D) 12
32. A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:
(A) 22
(B) 23
(C) 24
(D) 26
33. N number of persons decided to raise Rs. 3 lakhs by equal contributions from each. Had they contributed Rs.50 each extra, the contribution would have been Rs. 3.25 lakhs. How many persons are there?
(A) 400
(B) 450
(C) 600
(D) Cannot be determined
(E) None of these
34. Free notebooks were distributed equally among children of a class. The number of notebooks each child got was one-eighth of the number of children. Had the number of children been half, each child would have got 16 notebooks. Total how may notebook were distributed?
(A) 256
(B) 432
(C) 512
(D) Cannot be determine
(E) None of these
35. A classroom has equal number of boys and girls. Eight girls left to play kho-kho, leaving twice as many boys as girls in the classroom. What was the total number of girls and boys present initially?
(A) 16
(B) 24
(C) 32
(D) Cannot be determined
(E) None of these
Direction (Q.36-40): Find out the approximate value which should replace the question mark (?) in the following question. Note: (you are not expected to find out the exact value)
37. 89.988% of 699.9 + 50.002% of 999.99 – 170.015 = ?
(A) 990
(B) 900
(C) 920
(D) 960
(E) 860
39. 6999 ÷ 70.005 × 94.998 = ? × 19.999
(A) 475
(B) 420
(C) 320
(D) 540
(E) 525
40. 7441 ÷ 34 × 12 = ? × 9 + 110
(A) 420
(B) 280
(C) 590
(D) 350
(E) 220
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