There are 38 members in group A, 31 members in group B and 52 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 ₹375, ₹309 and ₹298, respectively. The total average amount (in ₹) spent per member is:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 325.
Total spent by group A = 38 × 375 = 14250
Total spent by group B = 31 × 309 = 9579
Total spent by group C = 52 × 298 = 15496
Now, total members = 38 + 31 + 52 = 121
Total spent = 14250 + 9579 + 15496 = 39325
Average spent per member = 39325 ÷ 121 = 325