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Question (21)

QN0020312

Since 16 is divisible by 4, the number 1516 is:

(A) Not divisible by 4
(B) Divisible by 4
(C) Prime
(D) Odd

Correct Answer: B

Explanation:

Last two digits satisfy the rule.

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Question (22)

QN0020313

A number is divisible by 8 if:

(A) Last three digits form a number divisible by 8
(B) Sum of digits is divisible by 8
(C) Last digit is 8
(D) It is even

Correct Answer: A

Explanation:

Check the last three digits.

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Question (23)

QN0020314

Which number is divisible by 8?

(A) 1248
(B) 1254
(C) 1270
(D) 1292

Correct Answer: A

Explanation:

248 ÷ 8 = 31.

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Question (24)

QN0020315

The last three digits of 4328 are:

(A) 328
(B) 432
(C) 428
(D) 238

Correct Answer: A

Explanation:

The last three digits are 328.

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Question (25)

QN0020316

Since 328 ÷ 8 = 41, the number 4328 is:

(A) Not divisible by 8
(B) Divisible by 8
(C) Divisible by 9
(D) Prime

Correct Answer: B

Explanation:

328 is divisible by 8.

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Question (26)

QN0020317

Which number is divisible by both 2 and 5?

(A) 275
(B) 460
(C) 843
(D) 917

Correct Answer: B

Explanation:

Numbers divisible by both 2 and 5 end in 0.

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Question (27)

QN0020318

A number divisible by both 2 and 5 must be divisible by:

(A) 3
(B) 4
(C) 10
(D) 9

Correct Answer: C

Explanation:

LCM of 2 and 5 is 10.

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Question (28)

QN0020319

Which number is divisible by both 3 and 9?

(A) 378
(B) 415
(C) 527
(D) 634

Correct Answer: A

Explanation:

3+7+8=18, divisible by 9.

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Question (29)

QN0020320

The sum of digits of 378 is:

(A) 16
(B) 17
(C) 18
(D) 19

Correct Answer: C

Explanation:

3+7+8=18.

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Question (30)

QN0020321

Which number is divisible by 2, 3, and 6?

(A) 425
(B) 612
(C) 701
(D) 955

Correct Answer: B

Explanation:

612 is even and digit sum is 9.

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