HackerRank Number System Quiz- 1

Question 1

Time: 00:00:00
Is 874575 completely divisible by 10 or not?

Completely divisible

Completely divisible

Not Divisible

Not Divisible

Can’t be determined

Can’t be determined

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Question 2

Time: 00:00:00
Is 9358191 completely divisible by 9?

Completely divisible

Completely divisible

Not Divisible

Not Divisible

Can’t be determined

Can’t be determined

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Question 3

Time: 00:00:00
If the sum and difference of two numbers is 15 and 3 respectively.Then the difference of their square is ?

276

276

216

216

176

176

188

188

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Question 4

Time: 00:00:00
Which digits should come in place of * and $ if the number 49826*$ is divisible by both 8 and 5?

2 and 6

2 and 6

6 and 8

6 and 8

  4 and 0    

  4 and 0    

1 and 4

1 and 4

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Question 5

Time: 00:00:00
A number A4561203 is divisible by 11. Find the value of A.

8

8

10

10

6

6

9

9

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Question 6

Time: 00:00:00
Paul Lukas sells half the number of existing apples plus 1 to the first customer, sells 1/3rd of the remaining apples plus 1 to the second customer and 1/5th of the remaining apples plus 1 to the third customer. He then finds that he has 3 apples left. How many apples did he have originally?

20

20

12

12

16

16

18

18

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Question 7

Time: 00:00:00
Victor McLaglen multiplies 987 by a certain number and obtains 559981 as his answer. If in the answer, both 9’s are wrong but the Other digits are correct, then the correct answer will be:

553681

553681

555181

555181

555681

555681

556581

556581

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Question 8

Time: 00:00:00
Jeff Goldblum multiplied a certain number x by 13. He found that the resulting product consisted of all nines entirely. Find the smallest value of x.

78645

78645

82564

82564

78154

78154

76923

76923

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Question 9

Time: 00:00:00
Chris Hemsworth wanted to write the numbers from the smallest number to the greatest number of three digits. How many times does he need to press the keys of the computer to do this job?

2889

2889

2583

2583

2189

2189

2659

2659

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Question 10

Time: 00:00:00
\frac{\sqrt{28}+\sqrt{7}}{\sqrt{28}-\sqrt{7}}

5

5

8

8

3

3

1

1

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["0","40","60","80","100"]
["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]

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