Mathematics

Q151

Ratio of Bio students to math students is 6:7. If 90 students are taking bio, how many are taking maths?

Q160

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:

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