state gov Assam (অসম) ADRE Grade III Mock Test Series 2025 Quantitative Aptitude Number System LCM and HCF
Three bells start ringing after interval of 20 minutes, 25 minutes and 40 minutes. They ring simultaneously at 8:00 am. They will ring simultaneously again at :
1
9:00 am
2
10:00 am
3
11:20 am
4
12:20 pm