Question
Three men A, B, and C working together dig 648 m deep in
six days. C digs as many meters more than B. B digs as many meters more than A. Then how much digging does A do per day?Solution
Efficiency of A+B+C = 3 = 108 Hence 1 = 36 B = 36 And by the Eq (1), divide the remaining value in such part so that can satisfy the value of Eq (1),, Value of A =30 and Value of B = 42.
A train has to cover a distance of 135 km in 15 hours. If it covers half journey in 3/5th time, then the speed of covering the remaining dist...
A truck travels from depot βDβ to warehouse βWβ. If it moves at 80 km/h, it reaches 1 hour early. If it moves at 60 km/h, it reaches 1 hour late...
Neha and Riya start together from point P to point Q. The ratio of their speeds is 4:3. If Riya takes 30 minutes more than Neha to reach point Q, find t...
Two individuals, A and B, travel from point M to point N at different speeds. A takes 6 hours to complete the journey, while B takes 8 hours. The differ...
Average speed of βAβ during a 20-hour journey is 30 km/h. If he covered the first 240 km of his journey at a speed of 20 km/h, then find the speed a...
'A' starts a journey and covers the first half of the total distance at a speed of 15 km/hr. Then, he travels half of the remaining distance at 5 km/hr ...
In a 2000-metre race, 'Aarav' beats 'Dev' by '400' metres and 'Ishaan' by '600' metres. If 'Dev' and 'Ishaan' participate in an 800-metre race, and 'Ish...
As observed from the top of a light house, 120 √3 m above the sea level, the angle of depression of a ship sailing towards it changes from 30°...
Two cyclists start from the same point and travel in opposite directions. Cyclist A rides at 20 km/h, and Cyclist B rides at 15 km/h. After 2 hours, how...
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 4 kmph then what is the speed of boy in still wa...