Question

An alloy is made up of 35% of nickel, 25 % magnesium and
is iron. Find the mass
of iron in 8ookg
of the
alloy.
​

Answer 1

Correct Question

• An alloy is made up of 35% of nickel, 25% magnesium and rest is iron. Find the mass of iron in 800 kg of the alloy.?

Given:

• Nickel = 35%
• Magnesium = 25%
• Rest is Iron (100 - 35 - 25) = 40%
• Total Mass of Alloy = 800 kg

To Find:

• Mass of Iron in Alloy? (kg)

Solution:

Let the mass of the iron be x.

$\\ \bigstar{\underline{\boxed{\sf{ \green{Iron_{(Amount)} } = Total \ Mass_{(Alloy)} \times \pink{ \dfrac{Iron_{(Amount)} \ in \ percentage}{100} } }}}}$

${\green\colon\implies}$ 800 × 40/100

$\colon\implies$ 320 kg

Hence,

• The Amount of the Iron in the alloy is 320kg.