The price of two articles are in the ratio of 5 : 6 respectively. The price of first article is increased by 30% and the price of second article is decreased by X%. If the new ratio is 13 : 11 respectively, then what is the value of X?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 8.33.
| Understanding/Application |
|
Let the Cost Price of two articles be Rs.500 and Rs.600 Price of first article is increased by 30% = 130% of 500 = (500 × 130/100) = Rs.650 Price of second article is decreased by X% = (100 - X)% of 600 = Rs.(600 - 6X) 650 : (600 - 6X) = 13 : 11 |
|
(600 − 6X) × 13 = 650 × 11 600 − 6X = 550 6X = 50 X = 8.33 |