Question

15 boys earn rupees 900 in 5 days how much will 20 boys earn in 7 days ​

Answer 1

Given :

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• 15 boys earn ₹ 900 in 5 days.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

To Find :

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• How much will 20 boys earn in 7 days = ?

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

SoluTion :

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

☛ Earning by 15 boys in 5 days = ₹ 900

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

☛ Earning by 1 boy in 5 days = $\sf \dfrac{900}{15}$

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

☛ Earning by 1 boy in 1 day = ₹ $\sf \dfrac{900}{15 \times 5}$

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

☛ Earning by 20 boys in 1 day = ₹ $\sf \dfrac{900}{15 \times 5} \: \times 20$

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

☛ Earning by 20 boys in 7 days = ₹ $\sf \dfrac{900}{15 \times 5} \: \times 20 \times 7$

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

☛ 240 × 7

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

☛ ₹ 1680

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Hence,

• 20 boys will earn ₹ 1680 in 7 days.

Answer 2

Given :-

$\: \: \: \: \:$

• 15 boys earn ₹ 900 in 5 days.

$\: \: \: \: \:$

To find :-

$\: \: \: \: \:$

• How much will 20 boys earn in 7 days = ?

$\: \: \: \: \:$

Solution :-

$\: \: \: \: \:$

$\large\rightarrow$ Earning by 15 boys in 5 days = ₹ 900

$\: \: \: \: \:$

$\large\rightarrow$ Earning by 1 boy in 5 days = $\large{\tt{\frac{900}{15}}}$

$\: \: \: \: \:$

$\large\rightarrow$ Earning by 1 boy in 1 day = ₹ $\large{\tt{\frac{900}{15 \times 5}}}$

$\: \: \: \: \:$

$\large\rightarrow$ Earning by 20 boys in 1 days = ₹ $\large{\tt{\frac{900}{15 \times 5} \times 20}}$

$\: \: \: \: \:$

Earning by 20 boys in 7 days = ₹ $\large{\tt{\frac{900}{15 \times 5} \times 20 \times 7}}$

$\: \: \: \: \:$

$~~~~~~$$\large\rightarrow$ $\large{\tt{240 × 7}}$

$\: \: \: \: \:$

$~~~~~~~~~~~~$$\large\implies$ $\large{\underline{\boxed{\green{\sf{₹~1680}}}}}$★

Hence,

• 20 boys will earn ₹ 1680 in 7 days.