Question

a cell phone was marked at 40% above the cost price and successive discount of 25%and 10% was give on its marked price .find gain or loss

Answer 1

let the price of cell phone be 100 then 40% is 140 and again successive discoount...
140

$140x25 \div 100 = 105 \\ 105 \times 10 \div 100 = 10.5 \\ \\ 105 - 10.5 = 94.5$

loss of 5.5 on the cell phone