Question:
A shopkeeper sells one transistor for Rs. 840 at a gain of 20% and another for Rs. 960 at a loss of 4%. His total gain or loss percent is:
[A].
None of these
A shopkeeper sells one transistor for Rs. 840 at a gain of 20% and another for Rs. 960 at a loss of 4%. His total gain or loss percent is:
[A].
| 5 | 15 | % loss |
| 17 |
[B].
| 5 | 15 | % gain |
| 17 |
[C].
| 6 | 2 | % gain |
| 3 |
[D].
Answer: Option B
Explanation:
| C.P. of 1st transistor = Rs. | 100 | x 840 | = Rs. 700. | ||
| 120 |
| C.P. of 2nd transistor = Rs. | 100 | x 960 | = Rs. 1000 | ||
| 96 |
So, total C.P. = Rs. (700 + 1000) = Rs. 1700.
Total S.P. = Rs. (840 + 960) = Rs. 1800.
| Gain % = | 100 | x 100 | % | = 5 | 15 | % | |
| 1700 | 17 |