Question

Four runners started running the race in the same direction around a circular path of 7 km. Their
speeds are 4, 3, 9 and 3.5 km/hr individually. If they have started their race at 6'O clock in the
moming, then at what time they will be at the starting point?
(A) Afer 14 hrs
(B) After 10 hrs
(C) Aner 12 hrs
(D) After 6 hrs
pls give a correct explanation ​

Answer 1

Answer:

18hours

Step-by-step explanation:

Answer 2

Answer:

14 hours

take lcm of all numerator and hcf of all denominator

as we know time =distance/speed

so write all the options given in question and solve that