Question

if the selling price of a TV set is equal to 6/5 of its cost price,Find the loss per cent.

Answer 1

let us assume c.p(cost price)=x
=>s.p(selling price)=6x/5

we know that : loss = c.p-s.p
loss = x-6x/5
= -x/5

and percentage = loss ×100÷c.p
loss%=-X/5×100÷x
which is equal to 20%

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Answer 2

selling price = 6/5 ofCost price

let the cost price be 'x'

selling price = 6x/5

we know that

cost - cost×loss percentage= selling price

x - x×loss percentage = 6x/5

loss Percentage = 6x/5 - x

x×loss percentage = x/5

loss percentage = x/5/x = x/5x = 1/5= 0.2 = 20℅