sum no. 22 please do this sum this sum is very complicated and important
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after 3 hours
Take the LCM
Take the LCM
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L.C.M ( 9,12,15)
9 = 3 x3
12 = 2 x 2 x 3
15 = 3 x 5
L.c.m ( 9,12,15) = 3x3x2x2x5 = 180 min or 3 hours.
∴ After 3 hours they toll together
9 = 3 x3
12 = 2 x 2 x 3
15 = 3 x 5
L.c.m ( 9,12,15) = 3x3x2x2x5 = 180 min or 3 hours.
∴ After 3 hours they toll together
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