q: 8, 27, 64, 100, 125, 216, 343
Options:
(A) 40
(B) 100
(C) 290
(D) 102
(E) 293
a: The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube. The answer is (B).
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q: Find the least number must be subtracted from 427398 so that remaining no.is divisible by 15?
Options:
(A) 3
(B) 5
(C) 7
(D) 8
(E) 9
a: On dividing 427398 by 15 we get the remainder 3, so 3 should be subtracted The answer is (A).
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q: A no. when divided by the sum of 555 and 445 gives 2times their difference as quotient & 30 as remainder. Find the no. is?
Options:
(A) 122456
(B) 145778
(C) 456678
(D) 235467
(E) 220030
a: (555 + 445) * 2 * 110 + 30 = 220000 + 30 = 220030 The answer is (E).
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q: A train 490 m long, running with a speed of 63 km/hr will pass a tree in?
Options:
(A) 15 sec
(B) 16 sec
(C) 28 sec
(D) 20 sec
(E) 25 sec
a:
Speed = 63 * 5/18 = 35/2 m/sec
Time taken = 490 * 2/35 = 28 se The answer is (C).
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