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Phổ biến >

30percentage of the class are 10 yars old and the other 21 children are 11 year old how many children were the class

Lời Giải

30percentage of the class are 10 yars old and the other 21 children are 11 year old how many children were the class

Lời Giải

Percentage : \frac{1}{3}

Class^{'} s age is : y

Các bước giải pháp

Translate the problem into an equation:

30 x = 10

Giải

x, 30 x = 10 : x = \frac{1}{3}

Tìm age

Percentage : \frac{1}{3}

Class^{'} s age is : y

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