Question

120 copies of a book cost Rs. 600 . What will 400 copies cost?​

Answer 1

Answer:

Dear, the answer is 2000 rs.

600 ÷120=5

400*5=200

Answer 2

Given - Cost of 120 copies of the book

Find - Cost of 400 copies of the book

Solution - The cost of 400 copies of the book is Rupees 2000.

The cost of 400 copies of the book will be found by using the unitary method.

So, the cost of 120 copies of the book is Rupees 600

Hence, the cost of 1 copy of the book will be - Rupees 600/120

Now, cost of 400 copies of book = 600*400/120

Cost of 400 copies of book = Rupees 2000

Therefore, the cost of 400 copies of the book is Rupees 2000.