Question

please do sum number 7 and 9 I have to do in class on board tomorrow. sum number 7 i did but not understanding what statements need to do the sum I only did calculation

Answer 1

let India's score be x
runs scored by Pakistan = 270
according to question
270+10%of x = x
270 = x -10x/100
270=x-x/10
270 = 9x/10 => 2700 = 9x => x = 2700/9 = 300 runs

9) let the money uma has be x
money Sonia has = rs 540
according to question
540 + 10%of x = x
540 = x-10x/100
540 = x-x/10
540 = 9x/10 => 5400 = 9x => x = 5400/9 = 600 rs
hope this helps