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If the expenditure of gas on burning 6 burners for 6 hours a day for 8 days is 450, then how many burners can be used for 10 days at 5 hours a day for 625 ?
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- 12
- 16
- 4
- 8
Correct Option: D
Using Rule 1,
Tricky Approach
| ∴ |  | : : 6 : x | |
| 10 : 8 | |||
| 5 : 6 |
⇒ 450 × 10 × 5 × x
= 625 × 8 × 6 × 6
| ⇒ x = | = 8 | 450 × 10 × 5 |
