The line chart given below shows the monthly petrol consumption (in litres) by 6 different cars CR1, CR2, CR3, CR4, CR5 and CR6.

The price per litre of petrol is Rs. 105.
P = Total monthly expenditure (in Rs.) on petrol for CR1 and CR4.
Q = Total monthly expenditure (in Rs.) on petrol for CR3 and CR6.
What is the value (in Rs.) of Q – P?
Show answer & explanation
Correct answer: D
Explanation
Given:
CR1 = 74, CR2 = 96, CR3 = 79, CR4 = 60, CR5 = 76, CR6 = 75
Price per liter = ₹105
P = (CR1 + CR4) × 105
= (74 + 60) × 105
= 134 × 105 = 14070
Q = (CR3 + CR6) × 105
= (79 + 75) × 105
= 154 × 105 = 16170
Q − P = 16170 − 14070 = ₹2100