Question
A car travels at a speed of 90 km/h and takes 4.5 hours
to cover a specific distance. A train can cover the same distance in 3 hours. If the speed of the car is increased by 40% and the speed of the train is decreased by 20%, determine the difference between the new speeds of the car and the train.Solution
ATQ, Distance covered by car = 90 × 4.5 = 405 km Speed of the train = 405/3 = 135 km/h Increased speed of the car = 90 × 1.4 = 126 km/h Decreased speed of the train = 135 × 0.8 = 108 km/h Required difference = 126 – 108 = 18 km/hr
In which of the following pair 2nd person doesn’t sit second to right of 1st person?Â
Who sits exactly between the one who faces P and the one who faces X?
How many coins does W have?
Seven friends, A, B, C, D, E, F and G, are sitting around a circular table, facing towards the centre. A is sitting to the immediate right of E. B is no...
Who among the following person sits third from the right end?
Who reads Dainik Bhaskar?
The girl who likes K is facing who among the following girls?
How many persons sit between J and E when counted from the left of J?
What is the position of P with respect to her sister?
Who sits third to the left of T?
Relevant for Exams:
