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Due to an increase of 20% in the price of eggs, 2 eggs less are available for ₹ 24. The present rate of eggs per dozen is :
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- ₹ 25.00
- ₹ 26.20
- ₹ 27.80
- ₹ 28.80
Correct Option: D
Original rate = ₹ x per egg
| New rate = ₹ | per kg | 5 |
| ∴ | - | = 2 | ||
| x | 6x |
| ⇒ | - | = 2 | ||
| x | x |
| ⇒ | = 2 ⇒ x = 2 | x |
| ∴ New rate = | = 2 ⇒ x = 2 | x |
∴ Rate per dozen of eggs
| = ₹ |  | × 12 |  | = ₹ 28.80 | 5 |
Aliter : Using Rule 31,
New price/present price
| = | 20 × 24 | = ₹ 28.80 | ||||
| 100 × | ||||||
| 12 | ||||||
