Refer to the three figures I, II and III in which numbers are arranged in squares. What is the value of X in figure III?
- (a)4
- (b)16
- (c)25
- (d)36
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Official answer(c) 25
Other questions on Logical Reasoning & Puzzles
A cuboid has six sides of different colours. The red side is opposite to black. The blue side is adjacent to white. The brown side is adjacent to blue. The red side is face down. Which one of the following would be the opposite to brown?
- (a)Red
- (b)Black
- (c)White
- (d)Blue
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Official answer(c) White
Six books A, B, C, D, E and F are placed side by side. B, C and E have blue cover and the other books have red cover. Only D and F are new books and the rest are old. A, C and D are law reports and others are Gazetters. What book is a new law report with a red colour?
- (a)A
- (b)B
- (c)C
- (d)D
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Official answer(d) D
Six persons M, N, O, P, Q and R are sitting in two rows, three in each. Q is not at the end of any row. P is second to the left of R. O is the neighbour of Q and is sitting diagonally opposite to P. N is the neighbour of R. On the basis of above information, who is facing N?
- (a)R
- (b)Q
- (c)P
- (d)M
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Official answer(b) Q
In a group of five persons A, B, C, D and E, there is a professor, a doctor and a lawyer. A and D are unmarried ladies, and do not work. Of the married couple in the group, E is the husband. B is the brother of A and is neither a doctor nor a lawyer. Who is the professor?
- (a)B
- (b)C
- (c)A
- (d)Cannot be determined with the available data
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Official answer(a) B
Half of the villagers of a certain village have their own houses. One-fifth of the villagers cultivate paddy. One-third of the villagers are literate. Four-fifth of the villagers are below twenty-five. Then, which one of the following is certainly true?
- (a)All the villagers who have their own houses are literate
- (b)Some villagers under twenty-five are literate
- (c)A quarter of the villagers who have their own houses cultivate paddy
- (d)Half of the villagers who cultivate paddy are literate
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Official answer(b) Some villagers under twenty-five are literate
P, Q, R and S are four men. P is the oldest but not the poorest. R is the richest but not the oldest. Q is older than S but not than P or R. P is richer than Q but not than S. The four men can be ordered (descending) in respect of age and richness, respectively, as
- (a)PQRS, RSPQ
- (b)PRQS, RSPQ
- (c)PRQS, RSQP
- (d)PRSQ, RSPQ
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Official answer(b) PRQS, RSPQ