Math, asked by amansinghrawat251, 4 months ago

12 लड़कों की औसत आयु 10 वर्ष है इनमें से 11 लड़कों की औसत आयु 9 वर्ष है 12 वे लड़के की आयु ज्ञात करें​

Answers

Answered by kumarankit000047
34

Answer:

11 years...

Step-by-step explanation:

...

Total age is = 12×10=120 years

11 boys have avaerge age is 9 years

Total age is = 11×9= 99 years

The age of twelth bay is = 120-99=21 years...

Answered by 9528768617
0

Answer:

Step-by-step explanation:

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