1. The ratio of ducks and frogs in a pond is 37 : 39 respectively. The average number of ducks and frogs in the pond is 152. What is the number of frogs in the pond?
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By: anil on 05 May 2019 01.26 am
Let the number of ducks and frogs in the pond be $$37x$$ and $$39x$$ resp Acc to ques, => $$frac{37x + 39x}{2} = 152$$ => $$38x = 152$$ => $$x = frac{152}{38} = 4$$ $$ herefore$$ Number of frogs = 4 * 39 = 156
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