I have a total of 300 …
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Yashvi Mehta 6 years, 9 months ago
Given
Total no. of coins =160
Let the no of 5₹ coins be x
Therefore no of ₹2 coins = 3x
Now let no of ₹1 coins be y.
So,
3x + x + y = 160
So 4x +y = 160 ....(1)
Since total money in ₹5 coins = 5 × x = 5x
Similarly total money in ₹2 coins = 2 × 3x = 6x
And total money in ₹1 coins = 1×y = y
So we get
5x + 6x + y = 300
11x + y = 300
or, y = 300 - 11x ....(2)
Putting value of y in ....(1)
4x + 300 - 11x = 160
-7x = -140
x = 20
Now you can find the no of ₹1, ₹2 and ₹5 coins using above equations and value of x.
0Thank You