Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 50 minutes, how many times do they toll together?
Answers
A) 4	B) 10	C) 15	D) 16	E) 26
L.C.M of 2,4,6,8,10,12 is 120. i.e after each 2 min they will toll together.So in 50 min they will toll 25 times.As they have initially tolled once,The answer will be  25+1= 
<gadget id="calculator"> 25+1</gadget>
<output>26</output>
26.   ANSW26R:26
<result>E</result>
Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 50 minutes, how many times do they toll together?