15 boys earn Rs.900 in 5 days, how much will 20 boys earn in 7 days?

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Solution

Dear student,

$15 b o y s e a r n R s . 900 i n 5 d a y s . T h e r e f o r e, 15 b o y s e a r n \frac{900}{5} = R s . 180 p e r d a y . T h e r e f o r e, e a c h b o y e a r n \frac{180}{15} = R s . 12 p e r d a y . T h e r e f o r e, 20 b o y s e a r n 12 \times 20 = R s . 240 p e r d a y . T h e r e f o r e, 20 b o y s e a r n 240 \times 7 = R s . 1680 i n 7 d a y s . R e g a r d s$

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