x% of 145 + 12.5% of 125 = $$2^2$$ × 22. Find the value of x  (correct to two decimal places) 

Correct option is C

Given:​

x% of 145 + 12.5% of 125 = $$2^2$$​ × 22

Solution:

​$$\frac{x}{100} \times$$​  145 + $$\frac{12.5}{100}\times$$​ 125 = $$2^2$$​​ × 22

1.45 x + 15.625 = 88

1.45 x = 88 - 15.625

1.45 x = 72.375

x = $$\frac {72.375}{1.45}$$ = 49.91​