the cost of 140 books is Rs168. What is the cost of 20 such books
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The cost of 20 such books is = 24 Rs.
Step-by-step explanation:
The cost of 140 books is = 168 Rs
The cost of 1 books is = 168/140 Rs
The cost of 20 books is = (168/140) × 20= 168/7= 24 Rs
So, the cost of 20 books is = 24 Rs
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