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Grace [21]
3 years ago
6

If the compound ratio of 7:5 and 8:x is 83:60 then find X​

Mathematics
1 answer:
baherus [9]3 years ago
5 0

Note: Consider 84 instead of 83 because the value of x is a decimal value of 83 which is not possible.

Given:

Compound ratio of 7:5 and 8:x is 84:60.

To find:

The value of x.

Solution:

Compound ratio of 7:5 and 8:x is 84:60.

\dfrac{7}{5}\times \dfrac{8}{x}=\dfrac{84}{60}

\dfrac{7\tims 8}{5\times x}=\dfrac{84}{60}

\dfrac{56}{5x}=\dfrac{84}{60}

By cross multiplication, we get

56\times 60=84\times 5x

3360=420x

Divide both sides by 1420.

\dfrac{3360}{420}=x

8=x

Therefore, the value of x is 8.

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