1601: If x and y are positive integers such that (3x + 7y) is a multiple of 11, then which of the followings are divisible by 11?
1602: The Chishti saint, in whose honour "Urs" is held in Ajmer every year, was
(a) Nizamuddin Auliya
(b) Moin-ud-din
(c) Nasiruddin Chiragh-i-Delhi
(d) Hamidud-Din Nagori
1603: Which of the following statements about 'Dinosaurs' is/are correct?
(a) The early man was a contemporary of Dinosaurs
(b) Man appeared first after the Dinosaurs became extinct
(c) The Dinosaurs became extinct about six million years before the appearance of the first man on the earth
(d) The Dinosaurs became extinct about 200 million years before the first man appeared on the earth
1604: Why is there a severe difference in the climates of Northern and Southern Hemisphere?
(a) Due to rotation of the earth around its axis
(b) Due to revolution of the earth around the sun of its orbit
(c) Both of the above
(d) None of the above
1605: The drugs "caffeine, tannin and nicotine" are:
(a) Steroids
(b) Cortisones
(c) Alkaloids
(d) Mild alkalis