Start learning →

RRB NTPC Mathematics — practice by topic

Browse 80 questions across 2 Mathematics topics. Choose what you want to revise, then open a question to check its answer and worked solution.

Start learning RRB NTPC with Quill →

Mathematics topics

Percentage (79)Number Sense (1)

Try a Mathematics question

Write 3/5 as a percentage.Read the answer and worked solution →What fraction of 100 is 18%?Read the answer and worked solution →Convert 0.72 to a percentage.Read the answer and worked solution →What is 25% of 360?Read the answer and worked solution →

Worked practice questions

Write 3/5 as a percentage.

  1. 50%
  2. 75%
  3. 65%
  4. 60%
Show answer and solution

Correct answer: D. 60%

Multiplying 3/5 by 100 gives 60%.

Open this question →

What fraction of 100 is 18%?

  1. 2/9
  2. 9/40
  3. 1/8
  4. 9/50
Show answer and solution

Correct answer: D. 9/50

18/100 simplifies to 9/50.

Open this question →

Convert 0.72 to a percentage.

  1. 7.2%
  2. 0.72%
  3. 720%
  4. 72%
Show answer and solution

Correct answer: D. 72%

A decimal becomes a percentage when multiplied by 100.

Open this question →

How to practise

  1. Choose a Mathematics question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.