Two cars, 15 km apart one is turning at a speed of 50kmph
other at 40kmph . How will it take to two cars meet.
Answer Posted / nishant chauhan
IN THIS QUESTION RELATIVE SPEED WILL BE(50+40)KM/H AND NOT
(50-40)KM/H BECAUSE SPEED ALWAYS ADDS WHEN VEHCLES ARE
TRAVELLING IN OPPOSITE DIRECTION. AND SPEED SUBSTRACTS WHEN
VEHCLES TRAVELLS IN SAME DIRCTION WHILE FINDING RELATIVE SPEED.
SO THE SOLUTION IS AS FOLLOWS:-
A is travelling at 50kmph, B is travelling at 40
kmph........according to the formula
time taken to meet = distance between them
----------------------
relative speed of two vehicles
so, time taken to meet= 15/(50+40)= 15/90= 0.1667hrs= 10
MINUTES.
SO, CORRECT ANSWER IS 10 MINUTES..
| Is This Answer Correct ? | 12 Yes | 4 No |
Post New Answer View All Answers
In a fraction, if 1 is added to both the numerator at the denominator, the fraction becomes 1/2. If numerator subtracted from the denominator, the fraction becomes 3/4. Find the fraction.
WRITE A LEAVE LETTER TO YOUR MANAGER
Two trains at speed 60 km/hr come in the opposite direction. At a particular time the distance between the two trains is 18km. A shuttle flies between the trains at the speed of 80 km/hr. At the time the two trains crashes what is the distance traveled by shuttle?
A speaks truth 70% of the times, B speaks truth 80% of the times.What is the probability that both are contradicting each other is ?
plz send test pattern of nsn engineers graduate.
When the angle a, b, c, d are given find ‘x’?
How many mashes are there in 1 square meter of wire gauge if each mesh is 8mm long and 5mm wide ?
Each row of letters or numbers has a rule connecting them. Write the next number or letterin the brackets. N , O , M , P , L , Q , K , R , (_ _ _)
Financial aptitude
A thief steals half the total no of loaves of bread plus 1/2 loaf from a bakery. A second thief steals half the reaming no of loaves plus 1/2 loaf and so on. After the 5th thief has stolen there are no more loaves left in the bakery. What was the total no of loaves did the bakery have at the beginning.
The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?
Which is the biggest perfect square amongst the following 15129, 12348, 23716, 20736
It has 20 mixture contains mil and water in the ratio 3:5,replace 4 litres of mixture with 4 litres of water what is the final ratio of milk and water.
An equilateral triangle of sides 3 inch each is given. How many equilateral triangles of side 1 inch can be formed from it?
If D is adjacent to F then who is adjacent to C?