Mathematics

Q24

Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1: 1: 2. If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be:

Q25

If you are the eleventh in a queue starting from either side and how many persons are there in the queue?

Q26

Diameters of two coins are in ratio 1:3. Smaller rolls around bigger coin. Number of rotations:

Q27

A class of 30 girls and 40 boys sponsored a ride. If 60 percent of the girls and 25 percent of the boys went on the ride, what percent of the class went on the ride?

Q29

If * is a binary operation in A, then:

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