Math, asked by keerthanajothimuruga, 1 year ago

a and b walked in a circular path of 900 metre in circumference,starting together from the same point in the same direction.If their speeds are 150 metre per minute and 200 metre per minute respectively,after how many minute will they be again at the starting point?

Answers

Answered by haridasan85
2

Answer:

T = Distance/speed

900 / 150 = 6 min

900 / 200 = 4 1/2 min

6-4 1/2 = 1 1/2 min

They again meet. after 1 1/2 min

Answered by pavithran66
2

Answer:

lcm of l/a,l/b where l is length is 900 ,a and b is 150 and 200 respectively

=900/150 ,900/200

=6/1,9/2

then lcm of 6/1,9/2

lcm of 6,9 is 18

hcf of 1,2 is 1

we know lcm in fraction = lcm /hcf

=18/1

=18 minute.

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