Question

Find x given 3x ∶ 215 = 42 ∶ 43

Answer 1

ANSWER:-

We have to find x in a ratio proportion of 3x ∶ 215 = 42 ∶ 43.

Now,

This ratio can be written as -

$\frac{3x}{215} = \frac{42}{43} \\ \\ = > 3x = \frac{42 \times 215}{43} \\ \\ = > 3x = 42 \times 5 \\ \\ = > x = \frac{42 \times 5}{3} \\ \\ = > x = 14 \times 5 \\ \\ = > x = 70$

Hence, the value of x is 70.