Question
Fifteen workers need 20 days to produce 2000 centre
fresh. Now, if the goal is to manufacture 4000 center fresh within 25 days, how many workers are needed to ensure the work is completed on time?Solution
ATQ, Let the required number of workers be βwβ and let efficiency of each worker be βmβ units per day {(15 Γ 20 Γ m) Γ· 2000} = {(25 Γ w Γ m) Γ· 4000} So, w = 24
720 metres long train crosses a man who is moving in the same direction with a certain speed, in 30 seconds. If the same train can cross a tree in 20 se...
Train X running at a speed of 35 km/hr crosses train Y in 18 seconds. Find the speed of train Y (in km/hr), if the sum of the length of train X and Y is...
A 240 m long train crosses a platform twice its length in 3 min. Find the speed of the train.
A train takes 5 seconds more to cross a 180-metre-long platform than it takes to cross a pole. If a car running at the speed of 42 m/s takes 80 seconds ...
Train P travelling at 52 km/hr crosses another train Q, having three fourth of its length and travelling in opposite direction at 20 km/hr in 21 seconds...
- Length of a train, whose speed is 48 km/h, is 240 metres. Find the time taken (in seconds) by train to cross a bridge of length 360 metres.
Train βAβ is travelling with a speed of 108 km/hr and crosses a vertical pole in 5 seconds. Train βBβ is 40 metres longer than βAβ and trav...
A train can cross a pole, a bridge of 510 meter long and platform of 450 meter long in 11 seconds, _____ seconds and 26 seconds, respectively.
Th...
Train 'A' is 300 meters long and crosses a pole in 15 seconds. It completely crosses Train 'B' (opposite direction) in 10 seconds. If Train 'B' is twic...
Gatiman express train crosses a platform in 23 seconds while it can cross a pole in 10 seconds. If the speed of the Gatiman express is 25 m/s, then find...