551: There are five books A, B, C, D and E placed on a table. If A is placed below E, C is placed above D, B is placed below A and D is placed above E, then which of the following books touches the surface of the table?
(a) C
(b) B
(c) A
(d) E
552: Arrange the following in a chronological order
(i) Dandi March
(ii) Simon Commission
(iii) Poona Pact
(iv) Gandhi Irwin Pact
(a) (i), (ii), (iii), (iv)
(b) (iii), (ii), (i), (iv)
(c) (ii), (i), (iii), (iv)
(d) (iii), (iv), (ii), (i)
553: If all the numbers from 501 to 700 are written, what is the total number of times does the digit 6 appear ?
(A) 141
(B) 138
(C) 140
(D) 139
554: The Upanishads are collectively known as
(a) Vedangas
(b) Vedanta
(c) Sruti
(d) Smriti
555: Which of the following can be found as pollutants in the drinking water in some parts of India?
1. Arsenic
2. Sorbitol
3. Fluoride
4. Formaldehyde
5. Uranium
Select the correct answer using the codes given below.
(a) 1 and 3 only
(b) 1, 3 and 5 only
(c) 2, 4 and 5 only
(d) 1, 2, 3, 4 and 5