871: A man is waiting for a bus on routes 10, 17 and 25. The bus on route 10 comes every 10 min, bus on route 17 comes every 20 min, and bus on route 25 comes every 40 min. After the man reaches the stop, a bus just leaves the stop. What is the minimum time for which he has to wait to get a bus?
(a) 2 min
(b) 4 min
(c) 6 min
(d) 10 min
872: The "Servants of India Society" was founded by:
(a) Annie Besant
(b) Gopalakrishna Gokhale
(c) Bal Gangadhar Tilak
(d) Dadabhai Naoroji
873: The earlier name of WTO was
(a) UNCTAD
(b) GATT
(c) UNIDO
(d) OECD
874: Total internal reflection can take place when light travels from
(a) diamond to glass
(b) water to glass
(c) air to water
(d) air to glass
875: Each of the 3 persons is to be given some identical items such that product of the numbers of items received by each of the three persons is equal to 30. In how many maximum different ways can this distribution be done ?
(A) 27
(B) 24
(C) 33
(D) 21