maths

[sridevi]

the traffic lights at three different road crossings change after every 48 second,72 second and 108 second,respectively.if they all change simultaneously at 8:20:00 hours,they will again change simultaneously at?

[gmatmachoman]

the traffic lights at three different road crossings change after every 48 second,72 second and 108 second,respectively.if they all change simultaneously at 8:20:00 hours,they will again change simultaneously at?

LCM ( 48,72,108) = 432

So the next change will happen after 432 seconds from 8.20 hrs

[sanju09]

the traffic lights at three different road crossings change after every 48 second,72 second and 108 second,respectively.if they all change simultaneously at 8:20:00 hours,they will again change simultaneously at?

LCM ( 48,72,108) = 432

So the next change will happen after 432 seconds from 8.20 hrs...

...and those 432 seconds, taken as 7 minutes 12 seconds, when added to the clock reading 8 hours 20 minutes 00 seconds, would set the answer as

[spoiler]08:27:12[/spoiler].

[gmatmachoman]

sanju bhai,


I likeeeeeeeeeeee u very much..LOL!! how n ice u r!!

[sanju09]

sanju bhai,


I likeeeeeeeeeeee u very much..LOL!! how n ice u r!!

No issues mate, our constitution is also that kind enough now. Take your steps without fear, you daring dear!

[saurabhmahajan]

gmatmachoman n sanju bhai congratulations to you both.

and they lived happily ever after