plz solve this question plz fast.. how to find one rupee coin
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18 1rs coin and 30 2rs coins
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18 1 rupee coin and 30 2 rupee coins
Solution : let us assume the no. of 1 rupee coins and 2 rupee coins as 3x and 5x respectively since they are in the ratio of 3:5.
Now the total value of one rupee coin in the money box would be 3x ×1 .
the total value of 2 rupee coin in the money box would be 5x × 2=10x
Also the total value of money is given as 78
therefore, 3x+10x =78
13x=78
x=6
so the number of 1 rupee coins are 3×6=18
Solution : let us assume the no. of 1 rupee coins and 2 rupee coins as 3x and 5x respectively since they are in the ratio of 3:5.
Now the total value of one rupee coin in the money box would be 3x ×1 .
the total value of 2 rupee coin in the money box would be 5x × 2=10x
Also the total value of money is given as 78
therefore, 3x+10x =78
13x=78
x=6
so the number of 1 rupee coins are 3×6=18
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