Answers

2014-07-29T11:00:18+05:30
Number of rs 5 coin=a
number of rs 2 coin=2a
cost of rs 5 coin=5a
cost of rs 2 coin =4a(2a x 2)
acoording to question,
5a+4a=108
9a=108
a=108/9
a=12
no. of rs 5 coin=12
no. of rs 2 coin=12 x 2=24
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2014-07-29T11:38:15+05:30
Let no. of 5 rupee coins=x
2 ruppee coin=2x
5x+4x=108
9x=108
x=108/9
  =12
So no. of 2 rupee coins=24
No. of 5 rupee coins=12
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