Directions: Read the following information to answer the question.
The time the distance between A & B will be 24m at two times when A has covered relative distance of 36m or 84m.
84/(17-13) = 21s
Directions: Read the following information to answer the question.
They will meet after every 360/(13-8) = 72 sec
They will meet at the starting point next time at
LCM(360/8,360/13) = 360 sec
Hence they will meet 5th time at the starting point =360/72 = 5
Therefore they have met 4 times before.
Directions: Read the following information to answer the question.
Average Speed = 3V1 X V2 X V3/(V1 XV2 + V2 XV3 + V3XV1)
= 6.4
Directions: Read the following information to answer the question.
At 4:00 , the angle between the 2 hands of the clock the angle is 120 degree.
The minute hands run at 6 degree/minute & the hour hand run at ½ degree per minute .
30 /(6-1/2) = 60/11 = 4:05 :27.
Directions: Read the following information to answer the question.
To cover up 15 min, the distance travelled with normal speed = 12 km
∴To cover up 45 min, the distance to be travelled at normal speed = 36 km
Total distance travelled = 30 + 36 = 66 km.