31. The sum of the four consecutive even numbers is 284. What would be the smallest number?
(a) 72
(b) 74
(c) 68
(d) 66
(e) None of the above
Answer:- (c) 68
32. The sum of the digits of a two-digit number is 14 and the difference between the two digits of the number is 2. What is the product of the two digits of the two-digit number?
(a) 56
(b) 48
(c) 45
(d) Couldn't be determined
(e) None of the above
Answer:- (b) 48
33. What number should be added to 231228 to make it exactly divisible by 33?
(a) 1
(b) 2
(c) 3
(d) 4
(e) None of the above
Answer :- (c) 3
34. Find the sum of first 25 natural numbers.
(a) 432
(b) 315
(c) 325
(d) 335
(e) None of the above
Answer:- (c) 325
35. Find the sum of the squares of first 35 natural numbers.
(a) 14910
(b) 15510
(c) 14510
(d) 16510
(e) None of the above
Answer:- (a) 14910
36. Find the sum of the cubes of first 15 natural numbers.
(a) 15400
(b) 14400
(c) 16800
(d) 13300
(e) None of the above
Answer:- (b) 14400
37. Find the sum of first 37 odd numbers.
(a) 1369
(b) 1295
(c) 1388
(d) 1875
(e) None of the above
Answer:- (a) 1369
38. Find the sum of first 84 even numbers.
(a) 7140
(b) 7540
(c) 6720
(d) 8832
(e) None of the above
Answer:- (a) 7140
39. Sum of first 15 multiples of 8 is
(a) 960
(b) 660
(c) 1200
(d) 1060
(e) None of the above
Answer:- (a) 960
40. The product of four consecutive natural numbers plus one is
(a) a non-square
(b) always sum of two square numbers
(c) a square
(d) None of the above
Answer:- (c) A square
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