ArithmeticHCF and LCM (IAS (Admin.) Prelims CSAT PaperII (Aptitude)): Questions 1  3 of 3
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Question number: 1
» Arithmetic » HCF and LCM
Appeared in Year: 2014
Question
A bell rings every 18 minutes. A second bell rings every 24 minutes. A third bell rings every 32 minutes. If all the three bells ring at the same time at 8 o’clock in the morning, at what other time will they all ring together?
Choices
Choice (4)  Response  

a.  12: 48 hrs 

b.  13: 04 hrs 

c.  12: 40 hrs 

d.  12: 56 hrs 

Question number: 2
» Arithmetic » HCF and LCM
Appeared in Year: 2014
Question
A bell rings every 18 minutes. A second bell rings every 24 minutes. A third bell rings every 32 minutes. If all the three bells ring at the same time at 8 o’clock in the morning, at what other time will they all ring together?
Choices
Choice (4)  Response  

a.  13: 04 hrs 

b.  12: 48 hrs 

c.  12: 40 hrs 

d.  12: 56 hrs 

Question number: 3
» Arithmetic » HCF and LCM
Appeared in Year: 2016
Question
There are five hobby clubs in a college —photography, yachting, chess, electronics and gardening. The gardening group meets every second day, the electronics group meets every third day, the chess group meets every fourth day, the yachting group meets every fifth day and the photography group meets every sixth day. How many times do all the five groups meet on the same day within ?
Choices
Choice (4)  Response  

a.  5 

b.  10 

c.  3 

d.  18 
