Four people move along the circumference of a park. They complete one round in 6 minutes, 8 minutes, 10 minutes and 14 minutes, respectively. Since they started together, after how many hours will they meet again at the starting position?

Correct option is D

Given:
Times: 6 min, 8 min, 10 min, 14 min
Formula Used:
Meeting time = LCM(6, 8, 10, 14) minutes
Convert minutes to hours = minutes ÷ 60
Solution:
LCM(6, 8, 10, 14) = 2³ × 3 × 5 × 7 = 840 minutes
840 ÷ 60 = 14 hours