Ques:- Find out the wrong number in each sequence:
8, 13, 21, 32, 47, 63, 83
8, 13, 21, 32, 47, 63, 83
A. 32
B. 47
C. 63
D. 83
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