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Duration: 20 minutes

 

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Number Play

Read Test instructions -

📝 Total Questions: 20
🕒 Test Duration: 20
✅ Test Format: MCQ
📚 Test Topic: Number Play
🏆 Pass Score: 50%

N.B. Do not refresh your browser during test time.

1 / 20

The smallest number with a digit sum of 14 is

2 / 20

Who discovered the Kaprekar constant?

3 / 20

Kaprekar constant for 3-digit numbers is -

4 / 20

Chapter “Number Play” mainly focuses on

5 / 20

Which digit sum pattern is seen in consecutive digits (123, 234, 345)?

6 / 20

How many times does digit ‘7’ appear from 1 to 1000?

7 / 20

Which is NOT a use of numbers?

8 / 20

In the game of 21, the winning numbers follow a pattern of

9 / 20

Kaprekar constant for 4-digit numbers is -

10 / 20

How many 3-digit palindromes can be made using digits 1, 2, 3?

11 / 20

If all children are of the same height, what number will each say?

12 / 20

Which time is palindromic?

13 / 20

Repeated addition is a form of

14 / 20

Which of these is a palindrome?

15 / 20

What is the maximum number of children who can say ‘2’ in a group of 5?

16 / 20

Estimation gives -

17 / 20

Collatz sequences always reach

18 / 20

The reverse of 47 is

19 / 20

Estimation is useful when

20 / 20

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