Reasoning: 125% of 120% of A = 225
125/100 * 120/100 * A = 225
A = 225 * 2/3 = 150.
Ans: (D)
Question: A sells a bicycle to B at a profit of 20%. B sells it to C at a profit of 25%. If C pays Rs. 225 for it, the cost price of the bicycle for A is?
Options:
(A) 277
(B) 268
(C) 270
(D) 150
(E) 282
Rationale: Given Exp. = (12)3 x 64 = (12)3 x 64 = (12)2 x 62 = (72)2 = 5184
432 12 x 62
The answer: (E)
Question: Find the value of y from (12)^3 x 6^4 432 = y?
Options:
(A) 2356
(B) 3467
(C) 4567
(D) 5189
(E) 5184
Reasoning: Using question number 11 and 12, we get the probability as
1 - (1/36 + 5/9) = 5/12
Ans: (B)
Question: Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is
Options:
(A) 5/9
(B) 5/12
(C) 1/36
(D) 7/12
(E) 4/9
Rationale: If he draws any combination of 3 socks he will definitely have the matching pair of either colour.
The answer: (B)
Question: John has 10pairs of dark blue socks and 10pairs of black socks. He keeps them all in the same bag. If he picks out 3socks at random, then what is the probability thathe will get a matching pair?
Options:
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
Reasoning: D = 60 * 5/18 = 35 = 583 120 = 463
Ans: (C)
Question: A train 120 m long running at 60 kmph crosses a platform in 35 sec. What is the length of the platform?
Options:
(A) 338
(B) 277
(C) 463
(D) 456
(E) 271
Reasoning: 1/12 + 1/25 = 37/300
300/37 = 8 1/10 days
Ans: (D)
Question: Anil can do a work in 12 days while Sunil can do it in 25 days. How long will they take if both work together?
Options:
(A) 10 1/10 days
(B) 18 1/10 days
(C) 7 1/10 days
(D) 8 1/10 days
(E) 9 1/10 days