If nobody brought an amount between Rs. 160 and 260 or more than Rs. 300 and the number of students who brought Rs. 50 was twice the number of students who brought 60, what is the average amount of the students who belong to more than one of A, B or C? [Round off your answer to neared integer.]
Explanation:
Consider the solution to first question of this set.
Now, since no student brought an amount between 160 and 260 and the highest amount that anyone brought is Rs. 300, we can have the following amounts (written in green) for each category.
∴ Average = (100 × 48 + 150 × 12 + 300 × 8 + 60 × 32 + 120 × 24) / (48 + 8 + 12 + 56) = 111
Hence, 111.
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