Question

A dozen books cost rupees 1920 find the cost of seven such books

Answer 1

Answer:

Cost of 12 books =₹ 1920

Cost of 1 book= 1920/12=₹160

Cost of 7 books =₹160×7=₹1120

Answer 2

Cost of 12 books=₹1920

Cost of 1 book=1920÷12

=₹160

Cost of 7 books=160×7

=₹1120

Hope this cleared your doubt

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