1081: In a family, a couple has a son and a daughter. The age of the father is three times that of his daughter and the age of the son is half of his mother. The wife is nine years younger to her husband and the brother is seven years older than his sister. What is the age of the mother ?
(a) 40 years
(b) 45 years
(c) 50 years
(d) 60 years
1082: What was the immediate reason for Ahmad Shah Abdali to invade India and fight the Third Battle of Panipat ?
(a) He wanted to avenge the expulsion by Marathas of his viceroy Timur Shah from Lahore
(b) The frustrated governor of Jullundhar Adina Beg Khan invited him to invade Punjab
(c) He wanted to punish Mughal administration for non-payment of the revenues of the Chahar Mahal (Gujarat, Aurangabad, Sialkot and Pasrur)
(d) He wanted to annes all the fertile plains of Punjab up to the borders of Delhi to his kingdom
1083: A city has a population of 3,00,000 out of which 1,80,000 are males. 50% of the population is literate. If 70% of the males are literate, the number of literate females is
(a) 24,000
(b) 30,000
(c) 54,000
(d) 60,000
1084: Assertion (A):
Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules.
Reason (R):
DNA fragments can be manipulated using restriction endonucleases and DNA ligases.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT a correct explanation of A
(c) A is true but R is false
(d) A is fasle but R is true
1085: Which one of the following rivers thrice forks into two streams and reunites a few miles farther on, thus forming the islands of Srirangappattanam, Sivasamudram and Srirangam ?
(a) Cauvery
(b) Tungabhadra
(c) Krishna
(d) Godavari