1501: A person travelled a distance of 50 km in 8 hours. He covered a part of the distance on foot at the rate of 4 km per hour and a part on a bicycle at the rate of 10 km per hour. How much distance did he travel on foot?
(A) 20 km
(B) 10 km
(C) 40 km
(D) 30 km
1502: Since 1980, the share of the tertiary sector in the total GDP of India has
(a) shown an increasing trend
(b) shown a decreasing trend
(c) remained constant
(d) been fluctuating
1503: In which one among the following is the speed of sound maximum ?
(a) Air at 100 degree celcius
(b) Air at 0 degree celcius
(c) Wood
(d) Water
1504: Other than Jatropha curcas, why is Pongamia pinnata also considered a good option for the production of bio-diesel in India ?
1. Pongamia pinnata grows naturally in most of the arid regions of India.
2. The seeds of Pongamia pinnata are rich in lipid content of which nearly half is oleic acid.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
1505: The chemical name of 'Aspirin' is:
(a) Acetyl cynamide
(b) Acetyl salicylic acid
(c) Benzyl salicylate
(d) Tartaric acid