Question

a) A shopkeeper sold a mobile set for Rs 9,600 and made a loss of 5%. For what price should he sell it to gain 10 percent​

Answer 1

Rs 10600

Explanation:

we can use cross multiplication

95 = 9600

105 = x

95x = 1008000

x=1008000/95

x = 10610.5

to 3sf = 10600

sell it for Rs 10600

Answer 2

Rs 11115.5

Explanation:

Selling price =Rs 9600

%loss = cost price - selling price. ×100

cost price.

5 = cost price - Rs 9600 ×100

cost price

Let Cp = cost price

5Cp = 100Cp - Rs 960000

5Cp - 100Cp = - Rs 960000

-95Cp = -Rs 960000

Cp = 960000/95

Cp = Rs 10105

%profit = Sp - Cp ×100

Cp

10 = Sp - 10105 ×100

10105

(10105×10)/100 = Sp - 10105

1010.5 = Sp -10105

Sp = 1010.5 +10105

Sp = Rs 11115.5