state gov Chandigarh Police Constable Mock Test 2023 Quantitative Aptitude Number System LCM and HCF
Four bells begin to toll together at 8.00 am and then each one at intervals of 5 s, 6 s, 7 s and 8 s respectively. How many times will they toll together in a shift of 7 hours?
1
21 times
2
25 times
3
15 times
4
31 times