Question
A number when divided by 35, leaves 18 as remainder. If
the same number is divided by 7, what would be the remainder?Solution
ATQ,
Let the number be (35x + 18)
We know that 35 is divisible by 7, so 35x will be divisible by 7 as well.
18 = 7 Γ 2 + 4
Remainder when 18 is divided by 7 = 4
So, required remainder = 4
A train crosses a pole and a platform of length 300 metres in 5 seconds and 20 seconds, respectively. Find the length of train.
A train 240 metres long crosses a platform 360 metres long in 30 seconds. Find the speed of the train in km/h.
Two trains running at the rates of 108 and 90 kmph respectively,Β On parallel rails in opposite directions, are observed to pass each other in 24 secon...
Train A of length 150 m is running at 54 km/h and Train B of length 200 m is running at 36 km/h in the opposite direction on parallel tracks. In how man...
A man is jogging at 4 m/sec in the same direction of a train. The train crosses him in 6 seconds. If the train's speed is 72 km/hr, find the time it tak...
Train βAβ can cross a pole in 10 seconds and a 140 metre long platform in 12 seconds. If the ratio of length of train βAβ and train βBβ is 2...
The time taken by train B to cross a platform of 120 metres is 3 sec less than the time taken by train A to cross the same platform. The sum of length o...
What will be the length of train 1?
Statement I: If train 1 covers a standing man in 12 sec.
Statement II: if a train 1 covers a platfo...
A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
A train 600 metres long is running at a speed of 54 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is: