TCS NQT || 2026 ||APTITUDE || NUMBER SYSTEM || HW

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Question 1

The sum of the first 10 natural numbers is:

  • 45

  • 50

  • 55

  • 60

Question 2

The sum of the first 15 natural numbers is:

  • 105

  • 110

  • 120

  • 125

Question 3

Rohit Sharma has a children's gift store that sells gift certificates in denominations of $3 and $5. The store sold 'm' $3 certificates and 'n' $5 certificates worth $93 on a Saturday afternoon. If 'm' and 'n' are natural numbers, how many different values can 'm' take?

  • 4

  • 5

  • 6

  • 7

Question 4

Which statement correctly describes the difference between rational and irrational numbers?

  • Rational numbers are always integers

  • Irrational numbers are always negative

  • Rational numbers have repeating or terminating decimals, irrational numbers do not

  • Irrational numbers can be written as p/q

Question 5

Which of the following sets represents natural numbers?

  • {0, 1, 2, 3, …}

  • {−1, −2, −3, …}

  • {1, 2, 3, 4, …}

  • {0, -1, 1, -2, 2, ...}

Question 6

Which of the following is not a natural number?

  • 1

  • 5

  • 10

  • 0

Question 7

The smallest natural number is:

  • 0

  • -1

  • 2

  • 1

Question 8

Which of the following is a rational number?

  • √2

  • √5

  • π

  • 3/4

Question 9

Which of the following can be represented exactly on the number line?

  • √2

  • π

  • Both A and B

  • 1/3

Question 10

Between any two rational numbers, there are:

  • No rational numbers

  • Only one rational number

  • Finite rational numbers

  • Infinitely many rational numbers

There are 15 questions to complete.

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