four bells toll at intervals 9,15,18 and 21 seconds.If they toll together at 4 p. m;when will they toll next ?
tanikaray:
Hey!!!! This came today in my maths application!!!!!!!!
test...............
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7
Bells will toll together after every period equal to common multiples of these for mbers.
Afte 4pm,bells will toll for first time after a period equal to Least Common Multiple of 9, 15, 18, 21 which is 630 seconds, i.e., at 10 min 30 sec past 4pm.
Afte 4pm,bells will toll for first time after a period equal to Least Common Multiple of 9, 15, 18, 21 which is 630 seconds, i.e., at 10 min 30 sec past 4pm.
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2
bell will rang alltogether after 630sec of 4pm.ie tthe L.C.M of9,15,18,and21
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