There are 30 members in group A, 76 members in group B and 44 members in group C. All the members of these groups went to a restaurant. The average amount spent on each member of group A, B and C is ₹249, ₹168 and ₹498, respectively. The total average amount (in ₹) spent per member is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 281.
Total members = 30 + 76 + 44 = 150
Total spent = (30 × 249) + (76 × 168) + (44 × 498)
⇒ 7470 + 12768 + 21912 = 42150
Average = = 281