Question

Some pens are bought at the rate of 9 for ₹ 80. If the whole lot is sold at ₹ 10 per pen. Find the gain or loss percent on the whole transaction.​

Answer 1

Answer:

9 pens of rate is Rs. 80

1 pen of rare is 80/9= 8.8

CP=80 and SP=88

therefore,

gain=cp-sp

80-88=8

• gain%=gain/cp×100

• 8/80×100
• 10%.

Answer 2

Answer:

25/2

Step-by-step explanation:

CP of 9 Pen = 80

SP of 1 pen = 9

SP of 9 Pen = 9×10

= 90

Gain = 90 - 80

= 10

Gain% = Gain/CP× 100

= 10/80 × 100

=100/80

=25/2