Ques:- Two trains of length 120 m and 280 m are running towards each other on parallel lines at 42 kmph and 30 kmph respectively. In what time will they be clear of each other from the moment they meet?
Recent Answer : Added by Admin On 2022-09-29 18:55:02:
I solve it as the 280m train being stationary… and the 120m train moving at (42+30) = 72kph…. or 20mps
The front of the train will have to go 280m to pass the stationary train plus another 120m for the backs to clear… that is 400m in all.
The time to travel 400m at 20mps is 20secs
Ques:- In an examination, 35% candidates failed in one subject and 42% failed in another subject while 15% failed in both the subjects. If 2500 candidates appeared at the examination, how many passed in either subject but not in both?
A. 325
B. 1170
C. 1175
D. 2125
Recent Answer : Added by Yashwanth B S On 2022-08-14 16:42:42:
C.1175
Ques:- Why have you been out of work so long?
Ques:- A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?
Recent Answer : Added by Paul On 2023-03-30 13:44:16:
Answers as expected
Ques:- A and B entered into a partnership investing Rs.16,000 and Rs.12,000 respectively. After 3 months, A withdrew Rs.5000 while B invested Rs.5000 more. After 3 years of C, out of a total profit of Rs.21,000. The share of B exceeds that of C, out of a total profit of Rs.26,400 after one year by
A. Rs. 2400
B. Rs. 3000
C. Rs.3200
D. Rs.3600
Recent Answer : Added by narendra On 2022-09-18 09:02:51:
D
Ques:- If 12 men shakes hand from each other then what will be the total no. of hand shakes exchanged.?
Ques:- The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8500. If his salary for the month of May is Rs.6500, find his salary for the month of January?
Recent Answer : Added by SHWETA On 2021-11-26 16:30:43:
4500 sal of jan
Ques:- The ratio of the present age of two brothers is 1:2 and 5 years back, the ratio was 1:3. What will be the ratio of their ages after 5 years?
Ques:- Tell me the most memorable day of ur life and why is it so?
Ques:- What are your Potential Reviews?
Ques:- If Re.1 amounts to Rs.9 over a period of 20 years.Evaluate the rate of simple interest?
Ques:- If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?
Recent Answer : Added by Subham Hazra On 2022-08-24 17:03:46:
Ques:- If u are given candles which takes exactly one hour to burn completely than how will you measure one and half hour?
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Ques:- About my personal life
Ques:- What is transistor?
Recent Answer : Added by Mohamed Raja M On 2022-04-02 07:00:18:
transistor is a semiconductor device for amplifying ,controlling and generating the electrical signals.
Ques:- Tell me about ur self.
Ques:- 45 men working 8 hours per day dig 30 m deep. How many extra men should be put to dig to a depth of 50 m working 6 hours per day?
Recent Answer : Added by narmada On 2022-08-24 17:02:48:
answer is 100
[(45 men*8hours)/30 meters]=12 (working rate)
[(x men*5 hours)/50 meters]=12 (working rate is same)
then x=100
Ques:- U r now executive tomorrow ur going to become frontlinemanager 5 sub-ordinates under u. two of them are ur friendsand three of them r seniors to u. how u will handle them?
Ques:- Two trains are on same track and they are coming toward each other. The speed of first train is 50 KMs/h and the speed of second train is 70 KMs/h. A bee starts flying between the trains when the distance between two trains is 100 KMs. The bee first flies from first train to second train. Once it reaches the second train, it flies back to the second train ? and so on until trains collide. Calculate the total distance traveled by the bee. Speed of bee is 40 KMs/h. .
Recent Answer : Added by DK BOSS On 2021-07-15 09:17:12:
Answer: 66.67 km approx.
Solution:
Let the first train A move at u km/h.
Let the second train B move at v km/h.
Let the distance between two trains be d km
Let the speed of bee be b km/h
Therefore, the time taken by trains to collide = d/(u+v)
Now putting all the known values into the above equation, we get,
u = 50 km/hr
v = 70 km/hr
d = 100 km
b = 80 km/hr
Therfore, the total distance travelled by bee
= b*d/(u+v)
= 80 * 100/(50+70)
= 66.67 km (approx)
Ques:- Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time which they take to cross each other is?
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Ques:- A reduction of 25% in the price of oil enables a house wife to obtain 5kgs more for Rs.800, what is the reduced price for kg?
Recent Answer : Added by DK BOSS On 2021-07-17 06:18:24:
Answer: 40
Explanation:
800*(25/100) = 200 —- 5
? —- 1 => Rs.40
Ques:- A cylindrical container has a radius of eight inches with a height of three inches. Compute how many inches should be added to either the radius or height to give the same increase involume?
Ques:- Can you explain in one line why should we select you fromthe number of applications we have received?
Ques:- What is the abbreviation of NACCO, OPEAC, NEWS?
Recent Answer : Added by mia tan On 2022-09-25 16:02:44:
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