[Math Revolution GMAT math practice question]

n is a positive integer less than 50. When n is divided by 6, the remainder is 2, and when n is divided by 7, the remainder is 6. What is the remainder when n is divided by 8?

A. 1

B. 2

C. 3

D. 4

E. 5

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When n is divided by 6, the remainder is 2.

When n is divided by 7, the remainder is 6.

(7x+6)/6 should give remainder 2

x=2 satisfies the equation.

Hence, the general equation will be 7*6x + 20 = 42x+20.

Since n is less than 50. Put x=0. Then n=20.

20/8 will leave a remainder 4. Therefore, D is the correct answer. Regards!

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2, 8, 14, 20, 26…

Using the second pieice of information, we see that n can be:

6, 13, 20

Since 20 matches both lists, we can say n = 20.

Thus, 20/8 2 remainder 4.

Answer: D

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## n is a positive integer less than 50. When n is divided by

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- [email protected] Revolution
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When n is divided by 7, the remainder is 6.

(7x+6)/6 should give remainder 2

x=2 satisfies the equation.

Hence, the general equation will be 7*6x + 20 = 42x+20.

Since n is less than 50. Put x=0. Then n=20.

20/8 will leave a remainder 4. Therefore, D is the correct answer. Regards!

- [email protected] Revolution
- Elite Legendary Member
**Posts:**3991**Joined:**Fri Jul 24, 2015 2:28 am**Location:**Las Vegas, USA**Thanked**: 19 times**Followed by:**37 members

=>

The positive integers less than 50 that have a remainder of 2 when they are divided by 6 are n = 2, 8, 14, 20, 26, 32, 38 and 44.

The positive integers less than 50 that have a remainder of 6 when they are divided by 7 are n = 6, 13, 20, 27, 34, 41 and 48.

The only integer in both lists is n = 20.

20 has a remainder of 4 when it is divided by 8.

Therefore, the answer is D.

Answer: D

The positive integers less than 50 that have a remainder of 2 when they are divided by 6 are n = 2, 8, 14, 20, 26, 32, 38 and 44.

The positive integers less than 50 that have a remainder of 6 when they are divided by 7 are n = 6, 13, 20, 27, 34, 41 and 48.

The only integer in both lists is n = 20.

20 has a remainder of 4 when it is divided by 8.

Therefore, the answer is D.

Answer: D

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Using the first piece of information, we see that n can be:[email protected] Revolution wrote: ↑Mon Aug 06, 2018 11:51 pm[Math Revolution GMAT math practice question]

n is a positive integer less than 50. When n is divided by 6, the remainder is 2, and when n is divided by 7, the remainder is 6. What is the remainder when n is divided by 8?

A. 1

B. 2

C. 3

D. 4

E. 5

2, 8, 14, 20, 26…

Using the second pieice of information, we see that n can be:

6, 13, 20

Since 20 matches both lists, we can say n = 20.

Thus, 20/8 2 remainder 4.

Answer: D

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