To be recognized as a National Party, a political party must
earn recognition in a minimum of
(a) Two States
(b) Three States
(c) Four States
(d) Five States
Three containers have their volumes in the ratio 3 : 4 : 5.
They are full of mixtures of milk and water. The mixtures
contain milk and water in the ratio of 4 : 1, 3 : 1 and 5 :
2 respectively. The contents of all these three containers
are poured into a fourth container. The ratio of milk and
water in the fourth container is
(a) 5 : 2
(b) 157 : 53
(c) 151 : 48
(d) 4 : 1