171: A car travels the first one-third of a certain distance with a speed of 10 km/hr, the next one-third distance with a speed of 20 km/hr and the last one-third distance with a speed of 60 km/hr. The average speed of the car for the whole journey is
(a) 18 km/hr
(b) 24 km/hr
(c) 30 km/hr
(d) 36 km/hr
172: The earlier name of WTO was
(a) UNCTAD
(b) GATT
(c) UNIDO
(d) OECD
173: Which of the following pairs is not correct?
(a) Seismograph : Earthquakes
(b) Anemometer : Speed of the wind
(c) Hygrometer : Water vapour content of the atmosphere
(d) Lactometer : Specific gravity of liquids
174: A very big refugee camp called Dadaab, recently in the news, is located in
(A) Kenya
(B) Somalia
(C) Sudan
(D) Ethiopia
175: Which of the following pairs is correct?
City : River
(a) Baghdad : Tigris
(b) Bonn : Danube
(c) Rome : Seine
(d) Paris : Tiber