A liquid P is 1 2/7 times heavier than water. Water is 1 5/7 heavier than liquid Q. How many litres of Q should be mixed with 70L of P,so that the weight of the mixture is equal to the weight of water?
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ब्रो ब्रो ब्रो ब्रो ब्रो ब्रो wryih नी bse chal
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