Challenger App

No.1 PSC Learning App

1M+ Downloads
There are three bells which ring at regular intervals of 30, 45 and 60 seconds respectively. If all of them ring together at 1:00 PM, at what time will they ring together again?

A1:03 PM

B1:24 PM

C1:30 PM

D1:12 PM

Answer:

A. 1:03 PM

Read Explanation:

LCM (30, 45, 60) = 180 After 180 Seconds (ie; 3 Minutes) they will ring together again


Related Questions:

രണ്ട് സംഖ്യകളുടെ ഗുണനഫലം 1520 ആണ്, അവയുടെ HCF 5 ആണ് സംഖ്യകളുടെ LCM:
The number 0.91191191111............... is :
The LCM and HCF of two numbers are 21 and 84 respectively. If the ratio of the two numbers is 1 : 4 then the larger of the two numbers is :
The ratio of two numbers is 4 : 5, and their HCF is 3. What is their LCM?
രണ്ട് സംഖ്യകളുടെ ലസാഗു 36 ഉസാഘ 6 . ഒരു സംഖ്യ 12 ആയാൽ രണ്ടാമത്തെ സംഖ്യ ഏത്?