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
Ques:- The LCM of three different numbers is 120. Which of the following cannot be their HCF?
A. 8
B. 12
C. 24
D. 35