Question

The cost of 5 books is Rs. 90 .What is the cost of 15 such books?​

Answer 1

Answer:

The cost of 5 books is Rs. 90 .What is the cost of 15 such books?

Step-by-step explanation:

The cost of 5 books is Rs. 90 .What is the cost of 15 such books?

Answer 2

Answer:

$\underbrace{ Solution }$

$\fbox{ Cost of 5 books = Rs. 90 }$

$\fbox{ Cost of 1 book = Rs. 90/5 }$

$\fbox{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = Rs. 18 }$

$\fbox{ Cost of 15 books = Rs. 18 × 15}$

$\fbox{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = Rs. 270 }$

Step-by-step explanation:

Hope this helps you.

# By Sparkly Princess