Question

The ratio of weight of copper and zinc in brass is 13:7 find the weight of zinc in a brass.age 15 your?​

Answer 1

Assume :

• Let the weight of the copper be 13x.

• Weight of zinc be 7x.

According to question our equation is :

$\sf{13x + 7x = 700}$

$\sf20x = 700$

$\sf{x = 35}$

• Weight of zinc in brass = 7 x 35 = 245 gm

Hence Solved✅.

Answer 2

Answer:

Let proportionality constant be 'x'

then, weight of copper =13x

and weight of zinc =7x

As per the question

Weight of brass =700 gm

Weight of copper in brass + Weight of zinc in brass =700 gm

⇒13x+7x=700

⇒20x=700

⇒x=35

Hence, Weight of copper in brass =13×35=455 gm

Weight of zinc in brass =7×35=245 gm

HOPE IT HELPS YOU.

EVYAAN