Four bells ring at intervals of 6, 8, 10

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

HCF and LCM

Question:

Four bells ring at intervals of 6, 8, 10 & 14 seconds. They started ringing simultaneously at 11 morning. They will ring again simultaneously at:

Options:

11 : 14

11 : 15

11 : 16

11 : 20

Correct Answer:

11 : 14

Explanation:

LCM of 6, 8, 10 & 14 = 840 sec = 14 m

Hence, bells will ring again at 11 : 14