Question

Cost of a science book is 5 times the cost of an English book. If a man purchased 5 English books and 3 science books ans pays ₹300 to the shopkeeper, find the cost of each book separately.

Sahil

Answer 1

let cost hof English book be x
then science book = 5x
Total price of English book = 5x
Total price of Science book = 15x
Total price = 5x + 15x = 300
20x = 300
x = 15

cost of English book is 15
science book is 5 × 15 = 75

Answer 2

Answer:

Let,cost of English book be x

Then,Science book =5x

Total price of English book =5x

Total price of Science book=3(x×5)=15x

Step-by-step explanation:

Total price =5x+15x=300

=20x=300

=x=300/20

=x=15

So,the cost of English book =15

The cost of Science book =(x×5)=(15×5)=75

Answers are completed

Please friends follow me

Comment writes me