Question

20 people went to a hotel for combine dinner party 12 of them spent Rs. 175 each on their dinner and rest spent Rs. 75 more than the average expenditure of all the 20. What was the total money spent by them?

• A. Rs. 3750
• B. Rs. 4500
• C. Rs. 6250
• D. Rs. 5000

Answer 1

Answer:

B. Rs. 4500

average expenditure of 20 people = Rs. x ⇒ 20 × x = 12 × 175 + 8 × (x + 75) ⇒ 20x = 2100 + 8x + 600 ⇒ 12x = 2700 ⇒ x = 2700 / 12 = 225 Total money spent by them = Rs. (20 × 225) = Rs. 4500