Numbers

Numbers

Congratulations - you have completed Numbers.

You scored %%SCORE%% out of %%TOTAL%%.

Your performance has been rated as %%RATING%%


Your answers are highlighted below.
Question 1
Which one of the following is not a prime number?
A
31
B
61
C
71
D
91
Question 1 Explanation: 
91 is divisible by 7. So, it is not a prime number.
Question 2
What least number must be added to 1056, so that the sum is completely divisible by 23 ? A. 2 B. 3 C. 18 D. 21 E. None of these
A
2
B
3
C
18
D
21
Question 2 Explanation: 
1056 divide by 23 then reminer 21 Required number = (23 - 21) = 2.
Question 3
Which of the following is a prime number ?
A
33
B
81
C
93
D
97
Question 3 Explanation: 
Clearly, 97 is a prime number. Number which divisible by only 1 and himself.
Question 4
The sum of first five prime numbers is:
A
11
B
18
C
26
D
28
Question 4 Explanation: 
Required sum = (2 + 3 + 5 + 7 + 11) = 28. Note: 1 is not a prime number. Definition: A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.
Question 5
The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ?
A
240
B
270
C
295
D
360
Question 5 Explanation: 
Let the smaller number be x. Then larger number = (x + 1365). x + 1365 = 6x + 15 ==> 5x = 1350 ==> x = 270 Smaller number = 270.
Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results
There are 5 questions to complete.

Leave a Reply

Your email address will not be published. Required fields are marked *