Question

Three seventh of a number is greater than two fifth of the number by 4. Find the number.

Answer 1

Answer:

Let the number be y.

so the equation goes like this :

$\frac{3}{7}$ × y = $\frac{2}{5}$ × y + 4

( As they have stated that  Three seventh of a number is greater than two fifth of the number by 4, we add to 4 to two fifth of the number to make it equal. Hope you undestand the equation)

⇒ $\frac{3y}{7}$ = $\frac{2y}{5}$ + 4

Take L.C.M

⇒ $\frac{3y}{7}$ = $\frac{2y + 20}{5}$

Cross multiply. we get:

5(3y) = 7( 2y + 20)

⇒ 15y = 14y + 140

⇒ 15y - 14y = 140

⇒ y = 140

∴ The number is 140.

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Answer 2

Answer:Answer:

Let the number be y.

so the equation goes like this :

× y = × y + 4

( As they have stated that  Three seventh of a number is greater than two fifth of the number by 4, we add to 4 to two fifth of the number to make it equal. Hope you undestand the equation)

⇒ = + 4

Take L.C.M

⇒ =

Cross multiply. we get:

5(3y) = 7( 2y + 20)

⇒ 15y = 14y + 140

⇒ 15y - 14y = 140

⇒ y = 140

∴ The number is 140.

Hope this helps!

Please mark me as brianliest.

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Step-by-step explanation: