Ques:- There is a die with 10 faces. It is not known that fair or not. 2 captains want to toss die for batting selection. What is the possible solution among the following?
A. a) If no. is odd it is head, if no. is even it is tail
B. b) vice versa...
Ques:- In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?
A. 3 : 1
B. 3 : 2
C. 3 : 4
D. 4 : 5