clAss 10th maths
ques;
4 BELLS TOLL TOGETHER AT 9.00 AM. THEY TOLL AFTER 7,8,11 AND 12 SECONDS RESPECTIVELY . HOW MANY TIMES THEY TOLL TOGETHER AGAIN IN THE NEXT 3 HOURS?
abs fast
ques;
4 BELLS TOLL TOGETHER AT 9.00 AM. THEY TOLL AFTER 7,8,11 AND 12 SECONDS RESPECTIVELY . HOW MANY TIMES THEY TOLL TOGETHER AGAIN IN THE NEXT 3 HOURS?
abs fast
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hey mate!
All 4 bells toll together at LCM(7, 8, 11, 12) = 1848 secs
3 hours = 3600 * 3 = 10800 secs
Number of times = 10800/1848 --> 5 times