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Question (1)

QN0018960

Which of the following is divisible by 9?

(A) 123
(B) 405
(C) 541
(D) 712

Correct Answer: B

Explanation:

4 + 0 + 5 = 9, which is divisible by 9.

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Question (2)

QN0018961

A number is divisible by 9 if:

(A) Its last digit is 9
(B) Its last two digits form a multiple of 9
(C) Sum of its digits is divisible by 9
(D) It is even

Correct Answer: C

Explanation:

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Question (3)

QN0018962

Which of the following numbers is divisible by 3 but not by 9?

(A) 123
(B) 144
(C) 117
(D) 234

Correct Answer: A

Explanation:

1 + 2 + 3 = 6, divisible by 3 but not by 9.

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Question (4)

QN0018963

Which divisibility test uses the sum of digits?

(A) Divisibility by 4
(B) Divisibility by 8
(C) Divisibility by 3
(D) Divisibility by 10

Correct Answer: C

Explanation:

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Question (5)

QN0018964

The smallest multiple of 9 containing no odd digit is:

(A) 88
(B) 248
(C) 288
(D) 444

Correct Answer: C

Explanation:

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Question (6)

QN0018965

Which of the following is divisible by 11?

(A) 158
(B) 481
(C) 90904
(D) 841

Correct Answer: C

Explanation:

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Question (7)

QN0018966

A number is divisible by 11 if:

(A) Sum of all digits is 11
(B) Difference of alternating digit sums is 0 or a multiple of 11
(C) Last digit is 1
(D) Sum of first and last digits is 11

Correct Answer: B

Explanation:

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Question (8)

QN0018967

Find the remainder when 158 is divided by 11 using the shortcut.

(A) 2
(B) 3
(C) 4
(D) 5

Correct Answer: C

Explanation:

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Question (9)

QN0018968

Find the remainder when 841 is divided by 11.

(A) 4
(B) 5
(C) 6
(D) 7

Correct Answer: B

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Question (10)

QN0018969

Find the remainder when 481 is divided by 11.

(A) 6
(B) 7
(C) 8
(D) 9

Correct Answer: C

Explanation:

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