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Ques:- 30% apples out of 450 are rotten. How many apples are in good condition?
A. 180
B. 240
C. 315
D. 335
Ques:- In what ratio must be 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 : 2
B. 3 : 3
C. 3 : 4
D. 3 : 6