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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?
- A148
- B152
- C156
- D144
Answer not set
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0
CCommunity
Solution
Let the number of ducks and frogs in the pond be $37x$ and $39x$ resp
Acc to ques,
=> $\frac{37x + 39x}{2} = 152$
=> $38x = 152$
=> $x = \frac{152}{38} = 4$
$\therefore$ Number of frogs = 4 * 39 = 156
Let the number of ducks and frogs in the pond be $37x$ and $39x$ resp
Acc to ques,
=> $\frac{37x + 39x}{2} = 152$
=> $38x = 152$
=> $x = \frac{152}{38} = 4$
$\therefore$ Number of frogs = 4 * 39 = 156
0
CCommunity
Solution
Let the number of ducks and frogs in the pond be $37x$ and $39x$ resp
Acc to ques,
=> $\frac{37x + 39x}{2} = 152$
=> $38x = 152$
=> $x = \frac{152}{38} = 4$
$\therefore$ Number of frogs = 4 * 39 = 156
Let the number of ducks and frogs in the pond be $37x$ and $39x$ resp
Acc to ques,
=> $\frac{37x + 39x}{2} = 152$
=> $38x = 152$
=> $x = \frac{152}{38} = 4$
$\therefore$ Number of frogs = 4 * 39 = 156