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RRB NTPC Decimals — practice questions

Explore 52 free Decimals questions in RRB NTPC Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Decimals questions and exercises with answers

Showing questions 1–30 of 52.

In the number 12.368, what is the place value of the digit 6?Read the answer and worked solution →Which fraction is equal to the decimal 0.125?Read the answer and worked solution →The decimal 2.5 written as an improper fraction isRead the answer and worked solution →Convert the fraction 3/8 into a decimal.Read the answer and worked solution →What is the decimal value of the fraction 7/20?Read the answer and worked solution →The sum 0.6 + 0.07 + 0.004 equalsRead the answer and worked solution →Find the sum of 12.5 and 3.75.Read the answer and worked solution →Divide 0.36 by 0.6.Read the answer and worked solution →How many times does 0.25 go into 7.5?Read the answer and worked solution →Which of these decimals has the greatest value?Read the answer and worked solution →Round 3.4766 correct to two decimal places.Read the answer and worked solution →Which of these fractions has a terminating decimal expansion?Read the answer and worked solution →The recurring decimal 0.333... (3 repeating forever) is equal toRead the answer and worked solution →The infinite decimal 0.4999... (9 repeating) equals which terminating decimal?Read the answer and worked solution →How many digits come after the point in 12.0508?Read the answer and worked solution →Multiplying 6.087 by 100 givesRead the answer and worked solution →Dividing 45.6 by 1000 givesRead the answer and worked solution →A decimal with 3 digits after the point is a fraction with denominatorRead the answer and worked solution →A fraction in lowest terms is a terminating decimal only if its denominator has just which prime factors?Read the answer and worked solution →What is 0.9 + 0.09 + 0.009?Read the answer and worked solution →Find the value of 1.2 × 1.2.Read the answer and worked solution →Simplify 0.1 ÷ 0.01.Read the answer and worked solution →Sugar costs Rs 42.40 per kg. What do 2.5 kg cost?Read the answer and worked solution →A rope 15.75 m long is cut into pieces of 0.75 m each. How many pieces result?Read the answer and worked solution →A man walks 3.6 km in the morning and 2.45 km in the evening. Total distance?Read the answer and worked solution →From a 5 m ribbon, 2.75 m is used. How much ribbon is left?Read the answer and worked solution →The fraction 5/4 written as a decimal isRead the answer and worked solution →The mixed number 2 3/5 expressed as a decimal isRead the answer and worked solution →Expressed as a percentage, the decimal 0.08 isRead the answer and worked solution →Evaluate 0.5 × 0.5 × 8.Read the answer and worked solution →

Worked practice questions

In the number 12.368, what is the place value of the digit 6?

  1. 6 hundredths
  2. 6 hundreds
  3. 6 thousandths
  4. 6 thousands
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Correct answer: A. 6 hundredths

The digits after the point run tenths, hundredths, thousandths, so 6 in the second place stands for 6 hundredths.

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Which fraction is equal to the decimal 0.125?

  1. 1/8
  2. 1/4
  3. 1/6
  4. 1/5
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Correct answer: A. 1/8

0.125 is 125/1000, which reduces to 1/8 after dividing by 125.

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The decimal 2.5 written as an improper fraction is

  1. 5/2
  2. 3/2
  3. 7/2
  4. 2/5
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Correct answer: A. 5/2

2.5 is 25/10, which simplifies to 5/2.

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More Mathematics topics

Geometry and TrigonometryPercentageElementary AlgebraFractionsLCM and HCFElementary StatisticsNumber SystemSimple & Compound Interest