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RRB NTPC Decimals — practice questions — page 2

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 31–52 of 52.

What is the fractional part of the decimal 56.789?Read the answer and worked solution →The block of digits that repeats forever in a recurring decimal is called theRead the answer and worked solution →Which of these numbers has a decimal expansion that neither ends nor repeats?Read the answer and worked solution →How many digits are in the repeating block of 1/7?Read the answer and worked solution →The sum 0.333... + 0.666... (both repeating forever) equalsRead the answer and worked solution →The square root of 0.0144 isRead the answer and worked solution →How many different digits does a base-ten numeral system use?Read the answer and worked solution →Which of these decimals lies between 0.3 and 0.4?Read the answer and worked solution →In fully reduced fractional form, which prime factors can appear in the denominator of a terminating decimal?Read the answer and worked solution →For a prime p other than 2 or 5, what is the upper bound on the period length of the decimal expansion of 1/p?Read the answer and worked solution →Which mathematical symbol is a horizontal bar placed above the repetend to denote a recurring decimal?Read the answer and worked solution →What is the sum of 0.25, 0.5, and 0.125?Read the answer and worked solution →What is 1.2 multiplied by 0.04?Read the answer and worked solution →What is 0.75 expressed as a simplified fraction?Read the answer and worked solution →Convert the recurring decimal 0.666... into a simple fraction.Read the answer and worked solution →What is the value of 4.5 divided by 0.09?Read the answer and worked solution →Which of the following is the largest decimal?Read the answer and worked solution →Evaluate: 5.0 - 0.35.Read the answer and worked solution →Convert the fraction 3/8 into a decimal number.Read the answer and worked solution →What is the place value of digit 7 in 24.375?Read the answer and worked solution →RRB NTPC · Fractions and Decimals MatchRead the answer and worked solution →RRB NTPC · Decimal OperationsRead the answer and worked solution →

Worked practice questions

What is the fractional part of the decimal 56.789?

  1. 0.78
  2. 56
  3. 0.789
  4. 0.89
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Correct answer: C. 0.789

The fractional part is the number minus its integer part, so 56.789 minus 56 leaves 0.789.

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The block of digits that repeats forever in a recurring decimal is called the

  1. divisor
  2. repetend
  3. mantissa
  4. quotient
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Correct answer: B. repetend

The finite digit sequence repeated infinitely is named the repetend, also called the reptend.

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Which of these numbers has a decimal expansion that neither ends nor repeats?

  1. 22/7
  2. 0.125
  3. √2
  4. 1/7
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Correct answer: C. √2

The square root of 2 is irrational, so its decimal never terminates or repeats, while 22/7 and 1/7 recur and 0.125 ends.

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