Question

some pen are bought at the rate of 9 RS 80 . If the whole lot is sold at RS 10 per pen the gain or loss per cent on the whole transaction​

Answer 1

Step-by-step explanation:

9 pens foe ₹80

1 pen = 80/9= 8.8

CP = 80

SP = 88

so gain = SP - CP

88-80=8

Gain % = gain/CP ×100

8/80×100

gain % = 10%

hope it helps❤

follow me