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Home Questions 8YFESW8NS4
Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

HCF and LCM

Question:

Five bells begin to toll together and toll respectively at intervals of 3, 5, 7, 9 & 11 seconds. After how many seconds they will toll together again:

Options:

3456

6543

3465

4356

Correct Answer:

3465

Explanation:

         3       5        7         9         11

Take LCM of these intervals:-

LCM = 3465

They will toll together again after 3465 sec.

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