Question

the cost of two books are in the ratio 4:3 respectively if the cost of the first book is 100 then find the cost of second book​

Answer 1

Step-by-step explanation:

1st book : 2nd book = 4x:3x

4x = 100

x = 100/4

x = 25

2nd book cost => 3x= 3 * 25 = 75

Answer 2

The cost of second book is Rs. 75.

Given - Ratio and cost of first book

Find - Cost of second book

Solution - Let the cost of first and second book be 4x and 3x. As the question states, first book costs Rs. 100. So, relating the two values to find the value of x.

4x = 100

x = 100/4

Performing division to find the value of x

x = 25

Now, we can calculate the cost of second book using the expression : 3x

Cost of second book = 3 × 25

Performing multiplication to find the cost of second book

Cost of second book = 75

Hence, the cost of second book is Rs. 75.

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