Question

3. Suraj, Rohit and Montu were practising for a hurdle race. Suraj crosses a hurdle after
every 15 m, Rohit after every 12 m and Montu after every 18 m. If their starting and
finishing points are the same, how many hurdles will each person cross? Also, find the
distance between the starting and the finishing points.

I am from School plz sout out my question
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Answer 1

Answer:

we will find the lcm

Now, HCF of 12,15,18

12=3*2*2

15=3*5

18=3*3*2

lcm of 12m,15m,18m  =180m

so they will meet after 180m