state gov DSSSB Junior Secretariat Assistant Mock Test 2021 (Old) Quantitative Aptitude Number System LCM and HCF
Five persons fire bullets at a target at an interval of 6, 7, 8, 9, and 12 seconds respectively. The number of times they would fire the bullets together at the target in an hour is:
1
6
2
7
3
8
4
9