Question

3/4 of 2/9 of 1/5 of a number is 124.8. What is 50% of the no

Answer 1

let the no be 'x'
3/4 of 2/9 of 1/5 of x = 124.8
3/4 * 2/9 * 1/5 * x = 124.8 (of = X [multiplication])
6/180 * x = 1248/10
1/3*x=1248 (cancelling both sides)
x=1248*3
50% of that no = 1248 * 3 / 2 ⇒1872 (50% = 1/2)