Question

wpb at station
Tu Duch stop is the LCM of 3 and 4.
The LCM of 3 and 4 is 2x2x3 = 12.
So, the first station at which the passenger can change trains is the 12th station.
4 =2x2x1.
A
Exercise OE
1. (a) Find the smallest number which when divided by 14 and 21 leaves no remainder.49
(b) Find the smallest number that is divisible by 27 and 36.108
2. (a) Find the smallest number that is divisible by 4,8 and 12. 24
(b) Find the smallest number which when divided by 14, 28 and 56 leaves no remainde
3. (a) Find the smallest number that leaves 5 as remainder when divided by 36 and 54.
(b) Find the smallest number which when reduced by 2 becomes divisible by 24,48 a
4. What is the smallest number of chairs that can be arranged in
rows of 9 or 15? US
5. Jack and Jill stand on the same tile of a tiled floor. Jack starts jumping
to every third tile in a row. And Jill starts jumping to every second
tile in that row. Which is the first tile on which both land?​

Answer 1

Answer:

• Wpb at station Tu Duch stop is the LCM of 3 and 4. The LCM of 3 and 4 is 2x2x3 = 12. So, the first station at which the passenger can change trains is the 12th station. 4 =2x2x1.

Answer 2

Wpb at station Tu Duch stop is the LCM of 3 and 4. The LCM of 3 and 4 is 2x2x3 = 12. So, the first station at which the passenger can change trains is the 12th station. 4 =2x2x1