state gov MP Forest Guard and Jail Prahari Mock Test 2023 Quantitative Aptitude Number System LCM and HCF
Five bells ring together at the intervals of 3, 5, 8, 9 and 10 seconds. All the bells ring simultaneously at the same time. They will again ring simultaneously after:
1
6 minutes
2
4 minutes
3
9 minutes
4
8 minutes