The cost 7

The cost of a pen is Rs. 20/3, and that of a pencil is 25/6. Which costs more and by how much?

Correct answer:

x = pen
d =  2.5 Rs

Step-by-step explanation:

a=20/3=320=6326.6667 Rs b=25/6=625=4614.1667 Rs  a>b  x=pen
d=ab=6.66674.1667=25 Rs=2.5 Rs

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