Question

7. Advait works as a librarian in Bright Children International School in Mumbai. (a) He ordered 336 Mathematics books and 264 Science books for his library on Monday. Each book costs Rs. 150. How much money did he spend on the purchase of these books on Monday? (b) He further ordered 206 English books and 105 Hindi books on Tuesday. Each book costs Rs.100. How much money did he spend on the purchase of these books on Tuesday? (c) How much money did he spend in all for purchasing all the books (including both the days)?​

Answer 1

Given :- Advait works as a librarian in Bright Children International School in Mumbai. (a) He ordered 336 Mathematics books and 264 Science books for his library on Monday. Each book costs Rs. 150.

To Find :- How much money did he spend on the purchase of these books on Monday ?

Solution :-

→ Total Mathematics books ordered = 336

→ Total Science books ordered = 264

so,

→ Total number of books ordered = 336 + 264 = 600

now,

→ Cost price of each book = Rs.150

then,

→ Total money spend on the purchase of these books on Monday = Total number of books ordered * Cost price of each book = 600 * 150 = Rs.90000

Given :- He further ordered 206 English books and 105 Hindi books on Tuesday. Each book costs Rs.100.

To Find :- (b) How much money did he spend on the purchase of these books on Tuesday ?

(c) How much money did he spend in all for purchasing all the books (including both the days) ?

Solution :-

→ Total English books ordered = 206

→ Total Hindi books ordered = 105

so,

→ Total number of books ordered = 206 + 105 = 311

now,

→ Cost price of each book = Rs.100

then,

→ Total money spend on the purchase of these books on Tuesday = Total number of books ordered * Cost price of each book = 311 * 100 = Rs.31100

therefore,

→ Total money spend on purchasing all the books (including both the days) = 90000 + 31100 = Rs.121100

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