A school has 30% students from Rajasthan. Out of these, 20% are Jaipur…

2023

A school has 30% students from Rajasthan. Out of these, 20% are Jaipur students. Find the total percentage of students from Jaipur?

  1. A.

    9%

  2. B.

    6%

  3. C.

    5%

  4. D.

    8%

Attempted by 371 students.

Show answer & explanation

Correct answer: B

Key idea: find 20% of 30% (percent of a percent).

  1. Let the total number of students be x.

  2. Students from Rajasthan = 30% of x = 0.30x.

  3. Students from Jaipur = 20% of the Rajasthan students = 0.20 × 0.30x = 0.06x.

  4. Percentage of the whole school from Jaipur = (0.06x / x) × 100% = 6%.

Answer: 6%.

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