Question

roshni pays rs 1206.50 to buy 19 books.how much more should she pay,if she buys 22 books?

Answer 1

Total rs. she pays = 1206.50
total books = 19
1 book rs.= 1206.50/19
= 63.5
22 books = 22×63.5
= 1397
she pays more = 1397-1206.50
= 190.5
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Answer 2

Here's ur ans buddy

cost of 19 books = rs 1206.50

so, cost of 1 book = rs 1206.50÷1

so, the cost of 22 books = 1206.50÷19×22

= 63.5 × 22 = 1397

the cost of the 22 books = Rs 1397

She pays more money = Rs1397 - Rs 1206.50 =Rs 190.5

Hence,She pays Rs 1397 more for the books.

Hope it'll help you

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