Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Number System LCM and HCF
Three bells ring at intervals of 40 sec, 60 sec and 120 sec. If they ring simultaneously at 9 :11 am at what time will the next ring together?
1
9 :13
2
9 : 20
3
10 : 00
4
More than one of the above
5
None of the above