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Question

Ruhi has only Re. 1 and Rs. 2 coins with her. If the total number of coins that she has is 50 and the amount of money with her is Rs. 75, find the number of Re. 1 and Rs. 2 coins with her.

A
50 and 25
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B
15 and 25
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C
35 and 15
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D
35 and 20
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Solution

The correct option is A 50 and 25
Let no. of 1 rupee coins=x
Let no. of 2 rupee coins=y
Total amount of money=75
x+2y=75 ...(1)
Total no. of coins=50
x+y=50 ...(2)
By solving (1) and( 2), y=25 and x=50
No. of 1 rupee coins=50
No. of 2 rupee coins=25

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