| Q.20 | The cost of a computer is 150% more than that of a mobile phone and the cost of a mobile phone is 80% more than that of a calculator. The cost of a computer decreases by 15%, that of a mobile phone increases by 20% and the cost of a calculator increases by 25%. What is the net percentage increase/decrease in the total cost of 2 computers, 5 mobile phones and 2 calculators as compared to the original cost? | |
| Ans | 1. Decrease, 4.5% | |
| 2. Increase, 4.75% | ||
| 3. Decrease, 5% | ||
| 4. Increase, 4.5% |
Correct Ans: 2
