15 lts of water containing 20% alcohol, then added 5 lts of
water. What is % alcohol.
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Light glows for every 13 seconds . How many times did it between 1:57:58 and 3:20:47 am
If m/n = 5/4 , then 2m+n= ?
i want rrb tc exam previous pepers
Two trains in the same direction at 50 & 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes him. What is the length of faster train ?
A finish the work in 10 days. B is 60% efficient than A. So hoW days does B take to finish the work?
The Parallelogram PQRS, the line RS have midpoint T from line PQ. What is the ratio of Triangle PTS / parallelogram PQRS?
Technical questions
There are 3 societies A,B,C having some tractors each. A Gives B and C as many tractors as they already have. After some days B gives A and C as many tractors as they have. After some days C gives A and B as many tractors as they have. Finally each has 24 tractors.what is the original No.of tractors each had in the beginning?
A person starts walking at a speed of 5km/hr through half the distance, rest of the distance he covers with a speed 4km/hr. Total time of travel is 9 hours. What is the maximum distance he can cover?
in space ship 5men are going1.doctor,drug asdditive 2.lady lawer has done crime 3.teacher emotinally imbalanced 4. 18 year old aeruonautical engineer 5. noble lauraut .suddenly some thing happend and oxygen is available to only three people to use which of three you choose
Find perimeter of a trapezium with 3 sides given and distance between parallel sides given.
If there are 1024*1280 pixels on a screen and each pixel can have around 16 million colors Find the memory required for this?
A person goes 4/5 of his usual speed reaches 10min late to his destination, time taken?
A guy shows his friend a girl standing in front of her in a hotel and says that she is the daughter of my granny's only son. How are they two related?
Albert and Fernandes have two leg swimming race. Both start from opposite ends of the pool. On the first leg, the boys pass each other at 18 m from the deep end of the pool. During the second leg they pass at 10 m from the shallow end of the pool. Both go at constant speed but one of them is faster. Each boy rests for 4 seconds at the end of the first leg. What is the length of the pool?