Question

I have rs.117 in coin of denominations of rs.5 and rs.2. if the number of 2 rupee coins is four times that of 5 rupee coin,find the number of coin of each denominations​

Answer 1

Step-by-step explanation:

No. of 5 rupee coin = x

No. of 2 rupee coin = 4x

ATQ

x + 4x = 117

5x = 117

x = 117/5

4x = 4× 117/5 = 468/5

No. of 5 rupee coin = 468/5

No. of 2 rupee coin = 117/5

Answer 2

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Let the number of 5 coins be x then,

Number of 2 coins=4x

Total =117

i.e. Total of 2 coins+total of 5 coins=117

= 2*4x+5x=117/ 13x=117/13

X=117/1 X=9

No. Of 2 coins=4*9=36

No. Of 5 coins=9