railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Quantitative Aptitude Number System LCM and HCF
Four bells started to toll at different intervals of 9, 12, 18 and 15 minutes, respectively. If the bells started at 9:00 a.m., what would be the time at which they will toll together for the first time?
1
6 p.m.
2
12 a.m.
3
6 a.m.
4
12 p.m.