1541: Higher plants take up Nitrogen as:
(a) Nitrites only
(b) Nitrates only
(c) Nitrates and ammonia
(d) Urea
1542: In 1930, a person's age was 8 times that of his son. In 1938, the father's age became ten times that of his son's age in 1930. The ages of the son and father in 1940 were, respectively.
(a) 16 years, 58 years
(b) 15 years, 50 years
(c) 14 years, 42 years
(d) 13 years, 34 years
1543: Whose tomb among the following is not located in India?
(a) Akbar
(b) Humayun
(c) Jehangir
(d) Itmad-ud-daula
1544: In the given map, the shaded part represents Akbar's empire at a certain juncture: A stands for an independent country and B marks the site of a city. Which one of the following alternatives gives all correct information ?
(a) Akbar in 1557 : (A) Golkunda (B) Lahore
(b) Akbar in 1557 : (A) Khandesh (B) Multan
(c) Akbar in 1605 : (A) Gondwana (B) Multan
(d) Akbar in 1605 : (A) Gondwana (B) Lahore
1545: Two trains leave New Delhi at the same time. One travels north at 60 kmph and the other travels south at 40 kmph. After how many hours will the trains be 150 km apart ?
(A) 4/3
(B) 3/2
(C) 3/4
(D) 15/2