Ram and Suraj start running from point A on a circular track of 1,200 m. Ram runs at a speed of 12 km/hr and Suraj at a speed of 8 km/hr. They start running in opposite directions at the same time. When each of them reaches at point A for the first time, they reverse their directions along the track. In how much time after starting will they meet for the second time?
(a) 7.2 min (b) 7.8 min (c) 10.8 min (d) 11.2 min (e) 9.4 min
Hi! Does anyone have an answer to this?
A bullet train moving at 108 km/h starts overtaking a car at a point A moving at 54 km/h at 6:30 p.m and overtakes it in 10 seconds. After that, the train travels for one hour and starts crossing a motorcyclist, travelling at 54 km/h in the opposite direction at a point C. When will the car meet the motorcyclist?
Ans - 8:00pm
please suggest some good books for advanced quant.
i have already solved ARUN SHARMA.
special attention to geometry, number system , perm com
Hi! Does anyone know the answer to this one?
Car P starts from city a towards city B at 8:00a.m. with a speed of 40km/h. Car Q starts from city B to city A at 10:00 a.m at 80km/hr. Car P stops at a petrol pump for 15 minutes at 9:00a.m. while car Q doesn`t stop anywhere. At what time do the two cars meet, if the distance between the two cities is 240km?
Ans - 11:25a.m.
how many numbers are co prime to 2304 and lies between 1000 and 2000 ??? Explanation please ..?
Can anyone please post an article or a link to one that describes the method of finding number of points of intersection when 'n' number of lines, circles, triangles, squares etc meet?
How many 4-digit numbers can be formed using 0-5 without repetition which are divisible by 4?
Hi! Can anyone tell me the answer to this one?
There are two points X and Y diametrically opposite on a circular road of circumference 20Km. A car starts at X and makes 4rounds. it starts off with a speed of 5Km/h and then increases its speed by 5Km/hr every time it reaches Y .What is the interval between the 2nd time it passes through Y and the 4th time it passes through Y?
Ans - (7/3)
The number of ways to give 16 things to 3 persons a b c where b gets 1 more than a and c gets 2 more than b when
1. The things are different.
2. The things are identical
I need approaches
Find the number of numbers from 1-100 which are not divisible by any of 2, 3 & 5
- 26
- 33
- 27
- 29
- 32
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In a watch, the minute hand crosses the hour hand for the third time exactly after every 3 hr 18 min and 15 s of watch time. What is the time gained or lost by this watch in one day?
(a) 14 min 10 s lost (b) 13 min 50 s lost (c) 13 min 20 s gained (d) 14 min 40 s gained
x+y+z=16....total integral soln where x>y>z