Question

9. The ratio of A and B in alloy is 7: 8. If the weight of B is 9.6 kg. Find the weight of A in the alloy,​

Answer 1

• The weight of A in the alloy = 8.4 kg.

Given :–

• The ratio of A and B in alloy = 7 : 8.
• The weight of B = 9.6 kg.

To Find :–

• The weight of A in the alloy.

Solution :–

Let,

The weight of A in the alloy = 7x.

The weight of B in the alloy = 8x.

Given that,

The weight of B = 9.6 kg.

First, we need to find the value of x.

So,

$\rightarrow8x = 9.6 \: kg$

$\rightarrow x = \cancel \dfrac{9.6}{8} \: kg$

$\rightarrow x = 1.2 \: kg$

Hence,

The value of x is 1.2 kg.

Now, we have to find the weight of A in the alloy.

So,

Weight of A = 7x.

• x = 1.2 kg

$\rightarrow7 \times 1.2 \: kg$

$\rightarrow8.4 \: kg$

Hence,

The weight of A in the alloy is 8.4 kg.

Answer 2

Step-by-step explanation:

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