Question

The ratio of two numbers is 5:7 and their sum is 84 .find these numbers.

Answer 1

$\boxed{\boxed{\tt{Solution :- }}}$

Ratio of two numbers is 5 : 7

Let the common multiple be x

So, let the 1st number be 5x and 2nd number be 7x

Their sum is 84


According to the given condition

5x + 7x = 84

∴ 12x = 84

∴ x = $\dfrac{84}{12}$

∴ x = 7


∴ 1st number ➾ 5x

➾ 5 × 7

➾ $\pink{\underline{\pink{\underline{\tt{\red{35}}}}}}$


∴ 2nd number ➾ 7x

➾ 7 × 7

➾ $\pink{\underline{\pink{\underline{\tt{\red{49}}}}}}$


$\large{\boxed{\boxed{\tt{Thanks}}}}$

Answer 2

let the common ratio be x
let the no. be 5x and 7x
A.T.Q
5x +7x= 84
12x=84
X= 84/12
x= 7
the no. = 5x
=5×7
=35
other no.=7x
=7×7
=49



hope it help you