Reasoning: 2
2 x 5 - 3 = 7
7 x 5 - 3 = 32
32 x 5 - 3 = 157
157 x 5 - 3 = 782
782 x 5 - 3 = 3907
Ans: (D)
Question: What will come in place of the x in the following Number series? 2, 7, 32, 157, 782, x
Options:
(A) 3707
(B) 3790
(C) 3910
(D) 3907
(E) 3970
Rationale: Circumference C is given by
C = 2r = 2*8 = 16 cm
The answer: (D)
Question: Calculate the circumference of a circular field whose radius is 8 centimeters.
Options:
(A) 17 cm
(B) 18 cm
(C) 1 cm
(D) 16 cm
(E) 6 cm
Reasoning: 10 * 150 = 1500
3 * 200 + 5 * 150 = 1350
1350 1050 = 300
Ans: (C)
Question: A man purchased 3 blankets @ Rs.200 each, 5 blankets @ Rs.150 each and two blankets at a certain rate which is now slipped off from his memory. But he remembers that the average price of the blankets was Rs.150. Find the unknown rate of two blankets?
Options:
(A) 100
(B) 200
(C) 300
(D) 400
(E) 500
Rationale: Total of results = 50 x 9 = 450
Total of first four results = 52 x 4 = 208
Total of Last four results = 49 x 4 = 196
Hence the fifth result = 450 - (208 + 196) = 46
The answer: (D)
Question: The average of 9 results is 50. The average of first four results is 52 and average of last four results is 49 . what is the fifth result?
Options:
(A) 22
(B) 27
(C) 29
(D) 46
(E) 92
Reasoning: (60/100) * 50 (40/100) * 30
30 - 12 = 18
Ans: (A)
Question: How much 60% of 50 is greater than 40% of 30?
Options:
(A) 18
(B) 28
(C) 26
(D) 27
(E) 23
Reasoning: A = 1600(21/20)3 = 2522
Ans: (C)
Question: Find the C.I. on a sum of Rs.1600 for 9 months at 20% per annum, interest being compounded quarterly?
Options:
(A) 2266
(B) 7767
(C) 2522
(D) 1677
(E) 2671