Question

The cost of 1 book is 8 rupees
. What os the cost of 8 books ?

Answer 1

Answer:

in proportion way-

1:8 = 8:y

= y*1= 8*8

= y = 8*8/1

= 8*8 = 64

therefore, the cost of 8 books is 64 rupees.

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Answer 2

Cost on book=8
therefore cost of 8 books =8*8=64