1791: The light from the Sun reaches the Earth in about
(a) 2 min
(b) 4 min
(c) 6 min
(d) 8 min
1792: Soft drinks such as colas contain significant quantities of
(a) caffeine
(b) nicotine
(c) tannin
(d) renin
1793: How many different triangles are there in the figure shown above?
(a) 28
(b) 24
(c) 20
(d) 16
1794: A consumer is said to be in equilibrium, if
(a) he is able to fulfil his need with a given level of income
(b) he is able to live in full comforts with a given level of income
(c) he can fulfil his needs without consumption of certain items
(d) he is able to locate new sources of income
1795: 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