Question
A,B and C run around a Circular track starting from the
same point simultaneously and in the same direction at the speed of 8 kmph, 12 kmph and 16 kmph respectively. If the length of the track is 800 metre, when will A, B and C meet at the starting point for the first time after they start the race?Solution
8km = 8000 m A makes it around the track 10 times (8000/800) in an hour Similarly B = 15 times and C = 20 times in an hour In 60 minutes, A will complete track once every 6 minutes, B once every 4 minutes and C once every 3 minutes LCM of A,B,C = LCM(6,4 & 3)= 12Â Alternative:Â Time = Distance/Speed Time for A = 0.8/8 hours Time for B = 0.8/12 hours Time for C = 0.8/16 hours LCM of A,B,C = (LCM of numerator)/(HCF of Denominator) = (LCM of 0.8,0.8,0.8)/(HCF of 8,12,16) = 0.8/4 hours 0.8/4 hours = 12 minutes
Select the most appropriate meaning of the given idiom.
Take the high ground
Select the most appropriate option to substitute the bold segment in the given sentence.
Our guests arrived ; they are sitting in the garden.
Select the most appropriate ANTONYM of the given word.
DETERMINED
Sowing of course (A) / coarse(B) has been hit hard due to delay and slow progress of monsoon in parts of the country.
We need to have appetite fo...
Select the most appropriate direct form of the given sentence.
The little girl asked her mother if she could visit her friend’s house.Â
Select the most appropriate antonym of the given word.
ALLURING
Handle this glass table with care because it is ______
Select the most appropriate word for the given group of words.
One who talks in sleep
Ubiquitous
Select the most appropriate word for the given group of words.
A small mischievous fairy
