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Standard XII

Mathematics

Permutation: n Different Things Taken r at a Time

A has some Rs...

Question

A has some Rs.5 and Rs. 2 new currency notes in his pocket totalling 20 notes valued Rs.70. Find the number of currency notes of each denomination.

(5, 15)

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(15, 5)

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(10, 10)

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Solution

The correct option is C (10, 10)
A has some Rs.5 and Rs. 2 new currency notes in his pocket totalling 20 notes valued Rs.70. Find the number of currency notes of each denomination. Therefore option c is correct. There are 10 notes of rupees 5/ which values rupees 50 and 10 notes of rupees 2 which is valued 20 so option is c.

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