-
The price of sugar is reduced by 20%. Now a person can buy 500g more sugar for ₹ 36. The original price of the sugar per kilogram was
-
- ₹ 14.40
- ₹ 18
- ₹ 15.60
- ₹ 16.50
Correct Option: B
Let the original price of sugar = ₹ x /kg.
Reduced price of sugar = 80% of x
| = | = ₹ | kg | ||
| 100 | 5 |
| ∴ | - | = | ||||
| x | 2 | 5 |
| ⇒ | - | = | ||||
| x | x | 2 |
| ⇒ | = | |||
| x | 2 |
⇒ x = 9 × 2 = ₹ 18/Kg
Aliter : Using Rule 31,
| New price = | 20 × 36 | = ₹ 14.4 | ||||
| 100 × | ||||||
| 100 | ||||||
Let the original price be Rs x
A.T.Q.
| x - | = 14.4 | |
| 100 |
| = 14.4 | ||
| 100 |
| x = | x = 18 | |
| 8 |
∴ Original price = ₹ 18
