Multiple choice

A college has raised 50% of the amount it needs for a new building by recieving an average donation of 600 rs. from the people already solicited. The people was 40% of the total people. If the college has to raise exactly the amount needed for new building what should be the average donation from the remaining people?

  1. 300 rs

  2. 250 rs

  3. 400 rs

  4. 500 rs

  5. 450 rs.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

If 40% of the people raised 50% of the required amount, their average donation of Rs. 600 implies a total target of Rs. 48,000 per 100 people. The remaining 60% must raise the other Rs. 24,000, requiring an average donation of Rs. 400.

AI explanation

Assume the total number of people is 100, meaning the college has already solicited 40 people. The amount raised so far is 40 * Rs. 600 = Rs. 24,000, which the problem states is exactly 50% of the total amount needed, so the full amount needed is Rs. 48,000. The remaining 50% to be raised is Rs. 24,000, and this must come from the remaining 60 people. The required average donation for the remaining people is Rs. 24,000 divided by 60, which equals Rs. 400.

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