Question

Marks of A and B are in the ratio 5 : 7 respectively. If the marks of A is 25, then find the marks of B?​

Answer 1

5/7 = 25/b

5b = 175

b = 175/5

b= 35

Marks of b is 35

Answer 2

The the marks of B = 35

Given :

• Marks of A and B are in the ratio 5 : 7 respectively.

• The marks of A is 25

To find :

The the marks of B

Solution :

Step 1 of 2 :

Write down the given ratio

Here it is given that Marks of A and B are in the ratio 5 : 7 respectively.

Step 2 of 2 :

Find marks of B

It is given that marks of A is 25

By the given condition

$\displaystyle \sf{ \frac{Marks \: of \: A}{Marks \: of \: B} = \frac{5}{7} }$

$\displaystyle \sf{ \implies \frac{25}{Marks \: of \: B} = \frac{5}{7} }$

$\displaystyle \sf{ \implies Marks \: of \: B= 25 \times \frac{7}{5} }$

$\displaystyle \sf{ \implies Marks \: of \: B= 35 }$

The the marks of B = 35

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