1616: With reference to the invaders in ancient India, which one of the following is the correct chronological order ?
(a) Greeks - Sakas - Kushans
(b) Greeks - Kushans - Sakas
(c) Sakas - Greeks - Kushans
(d) Sakas - Kushans - Greeks
1617: A car runs at a speed of 40 km per hour during the first half of the journey and at a speed of 60 km per hour during the second half of the journey. The average speed of the car is:
(a) 48 kmph
(b) 50 kmph
(c) 52 kmph
(d) 54 kmph
1618: A genetically engineered form of brinjal Known as the Bt-brinjal has been developed. The objective of this is
(a) To make it drought-resistant
(b) To make its shelf-life longer
(c) To improve its taste and nutritive qualities
(d) To make it pest-resistant
1619: Amit starts from a point a and walks to another points B, and then returns from B to A by his car and thus takes a total time of 6 hours and 45 minutes. If he had driven both ways in his car, he would have taken 2 hours less. How long would it take for him to walk both ways ?
(A) 8 hours 45 minutes
(B) 8 hours 30 minutes
(C) 7 hours 45 minutes
(D) 8 hours 15 minutes
1620: A World Summit with representation from all the countries will be held in Johannesburg in September 2002 on the subject of
(a) AIDS control
(b) Global terrorism
(c) Human rights
(d) Sustainable development