Three clocks chime every 14 minutes ,22 minutes and 77 minutes , respectively.
Since lcm(a, b), is the smallest positive integer that is divisible by both a and b , so If the three clocks chime together , then all will together chime again in LCM of 14 ,22 and 77 minutes .
LCM(14,22,77) = 2*7*11 =154
So 154 minutes must pass before they will again chime together .
So option d is the answer .
Use least common multiple or greatest common divisor to solve the problem. Three clocks chime every...
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