Question

7. A person having brought goods for Rs. 400. He sells
half of it at a gain of 5%, at what gain % must he sold
the remainder so as to gain 20% on the whole?​

Answer 1

Answer:

35%

Step-by-step explanation:

To gain 20% on whole he must sell all good for,

Rs. 400 + 20% of 400 = 480

As he get 5% gain on half of the goods i.e.

200 + 5% of 200 = 210

So required balance = 480 - 210 = 270

He must gain Rs. 70 on rest Rs. 200

% gain on remainder goods = 70×100/200

= 35%

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Answer 2

Answer:

1 Ans. He sold the goods for 210 to have profit of 5 percent

2 Ans. He must sell the rest for 240 to have profit of 20 percent

Step-by-step explanation:

1. Half of 400 = 400/2

= 200 rs

Therefore, 5 percent of 200 =

200 × 5

100

= 10 rs

He sold goods for 210 rs

2. Half left means goods of 200 rs left

Therefore to gain profit of 20 percent over 200rs,

200 × 20

100

= 40 rs

He sold leftover for 240 rs