10 Important Math MCQs for most of the competitive exams
Que 1: What will be the compound interest earned on an amount of Rs.12000/- @ 10 p.c.p.a. in two years?
(A) 2400
(B) 2520
(C) 2420
(D) 2100
Correct Ans: B
Que 2: A person subscribing to Sky cable for an year pays Rs. 1,785. If the monthly subscription is Rs. 175. How much discount does a yearly subscriber get?
(A) 13%
(B) 15%
(C) 17%
(D) 16.5%
Correct Ans: B
Que 3: Find the average of the first 97 natural numbers.
(A) 47
(B) 48
(C) 37
(D) 49
Correct Ans: D
Que 4: 27.81 + 43.74 – 64.37 = ?
(A) 7.18
(B) 8.18
(C) 8.68
(D) 7.58
Correct Ans: A
Que 5: The average of 11 observation is 60. if the average of first five observations is 58 and that of last five is 56, the sixth observation is?
(A) 90
(B) 110
(C) 85
(D) 100
Correct Ans: A
Que 6: A cricketer has completed 14 innings and his average is 30 runs. how many runs must he make in his next innings so as to raise his average to 32?
(A) 60
(B) 55
(C) 65
(D) 50
Correct Ans: A
Que 7: The average of five numbers is 42 while the average of another eight numbers is 81 what is the combined average of all numbers together?
(A) 60.5
(B) 66
(C) 65
(D) 68.5
Correct Ans: B
Que 8: The average of first five multiple of 3 is
(A) 3
(B) 5
(C) 9
(D) 3.3
Correct Ans: C
Que 9: Ram bought 2 articles for rupees 5.50 each, 3 articles for rupees 3.50, 3 articles for rupees 5.50 each and 5 articles for 1.5 rs each the average price of one article is
(A) Rs 3
(B) Rs 3.10
(C) Rs 3.50
(D) Rs 2
Correct Ans: C
Que 10: By what least number, 3600 be divided to get a perfect cube?
(A) 9
(B) 50
(C) 300
(D) 450
Correct Ans: D
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