Directions (1-3): What will come in place of (?) in the following number series problems?
1. 1, 4, 15, 64, 325, ?
a) 1856 b) 1844 c) 1952 d) 1956 e) 1786
2. 100, 121, 144, 169, 196, ?
a) 225 b) 230 c) 235 d) 240 e) 245
3. 6, 3, 3, 4.5, 9, ?
a) 23.5 b) 20 c) 22.5 d) 21.5 e) 24
A student has to answer 11 out of 14 questions only in an examination such that he must choose at least 5 from the first 6 questions. The number of ways available to him is.
a) 256 b) 252 c) 156 d) 224
The drawings on the cave walls _________ the lives of the earliest men on the planet.
a) presents b) assured c) conceal d) depict
With an average speed of 40 km/hr, a train reaches its destination in time. If it goes with an average speed of 35 km/hr, it is late by 15 minutes. The length of the total journey is
a) 40 km b) 70 km c) 30 km d) 80 km
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