Math MCQs

Math MCQs

Quantitative Ability multiple choice questions (MCQs) Post-3. The following Quantitative Ability questions are from highest common factor and least common multiple.

Question 1

A neon sign flashes every 3 seconds, another sign flashes every 5 seconds, and a third flashes every 7 seconds. If they all flash togather, how many seconds will pass before they all flash simultaneously again?

15 seconds
35 seconds
105 seconds
21 seconds


Question 1: The correct answer is Answer 3: 105 seconds.

Name

E-mail *

Error Description *

~ QA P3 Q1 ~

Question 2

The greatest number which exactly divides 1155 and 735 is:

25
5
15
105


Question 2: The correct answer is Answer 4: 105.

Name

E-mail *

Error Description *

~ QA P3 Q2 ~

Question 3

The least number which when divided by 35, leaves remainder of 25; when divided by 45 leaves a remainder of 35 and when divided by 55 leaves 45 as remainder, is:

3455
3465
3475
10


Question 3: The correct answer is Answer 1: 3455.

Name

E-mail *

Error Description *

~ QA P3 Q3 ~

Question 4

The L.C.M of 12, 20, 24, 32 is:

240
360
480
600


Question 4: The correct answer is Answer 3: 480.

Name

E-mail *

Error Description *

~ QA P3 Q4 ~

Question 5

How many whole bricks 6 x 12 x 24 cm will be sufficient to construct a solid cube of minimum size?

4
6
8
12


Question 5: The correct answer is Answer 3: 8.

Name

E-mail *

Error Description *

~ QA P3 Q5 ~

Question 6

The L.C.M and H.C.F of two numbers are 150 and 30 respectively, and one of the numbers is 18, find the other number?

250
180
150
170


Question 6: The correct answer is Answer 1: 250.

Name

E-mail *

Error Description *

~ QA P3 Q6 ~

Question 7

The product of two numbers is 2500. If their L.C.M is 125, then their H.C.F is:

20
250
125
None of these


Question 7: The correct answer is Answer 1: 20.

Name

E-mail *

Error Description *

~ QA P3 Q7 ~

Question 8

It takes Riaz 30 minutes to mark a paper. Razi only need 25 minutes to mark a paper. If they both start marking papers at 11:00 AM, what is the first time they will finish marking a paper at the same time?

12:30
12:45
1:30
12:35


Question 8: The correct answer is Answer 3: 1:30.

Name

E-mail *

Error Description *

~ QA P3 Q8 ~

Question 9

Sonia buys two off-cuts of ribbon in a sale. One is 153 cm long. The other is 204 cm long. She cuts them so that she ends up with a number of pieces all the same length. What is the greatest length each piece can be?

39
6
17
51


Question 9: The correct answer is Answer 4: 51.

Name

E-mail *

Error Description *

~ QA P3 Q9 ~

Question 10

A farmer wants to fence a triangular field. He plans to put a fencing post in each corner and place other posts at equal distance along its sides. He wants the posts to be as far apart as possible. The sides of the field are 477 feet 2412 feet and 639 feet long. How far apart will the posts be?

18 feet
9 feet
27 feet
159 feet


Question 10: The correct answer is Answer 2: 9 feet.

Name

E-mail *

Error Description *

~ QA P3 Q10 ~