Daily Dose of Solved Questions May 18

CSAT 2020 | DDSQ May 18 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways

A box contains 5 sets of balls while there are 3 balls in each set. Each set of balls has one colour which is different from every other set. What is the least number of balls that must be removed from the box in order to claim with certainty that a pair of balls of the same colour has been removed?

(a) 6
(b) 7
(c) 8
(d) 9

Daily Dose of Solved Questions May 1

CSAT 2020 | DDSQ May 1 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways

In a society it is customary for the friends of same sex to hug and friends of opposite sex to shake hands when they meet. A group of friends met in a party and there are 24 handshakes. Which one among the following numbers indicates the possible number of hugs?

(a) 39
(b) 30
(c) 21
(d) 20