Common Division Method for L.C.M

Q. Find the LCM of 25, 50 and 100.

1. 25

2. 50

3. 75

4. 100

Q.

Manu goes dance class once every 6 days, karate class once in every 12 days and art class once in every 18 days. She attended all the three classes on 1st April. On which day, will she attend all the 3 classes again?

Q. The least number which is exactly divisible by 6, 12, 24 is ___.

1. 24
2. 12
3. 6
4. 1

Q.

Samaira heard 3 bells toll together at 10:00 AM. The first bell tolls after 5 second, the second tolls after 9 seconds and the third tolls after 10 seconds. When will they toll together again?

1. After 90 seconds
2. After 2 minutes and 30 seconds
3. After 3 minutes
4. After 45 seconds

Q. What is the smallest number which when decreased by 7 is exactly divisible by 12, 16, 18, 21 and 28?

1. 1015
2. 1012
3. 1022
4. 1008

Q. The smallest 3-digit number which is completely divisible by 18, 24 and 32 is

1. $13824$
2. $288$
3. $432$
4. $576$

Q. The L.C.M of 50 and 75 is .

1. 25
2. 75
3. 175
4. 150

Q. LCM of the numbers 40, 48 and 90 is

1. 720
2. 360
3. 520
4. 640

Q. The LCM of $2,4$ and $7$ is

1. $28$
2. $2$
3. $4$
4. $7$
5. $56$

Q. The LCM of $2,4$ and $7$ is

1. $28$
2. $2$
3. $4$
4. $7$
5. $56$