∆ ABC is similar to ∆ DEF. If area of ∆ABC is 9 sq.cm and area of ∆DEF is 16 sq.cm and BC = 2.1 cm. Then the length of EF will be
If triangle are similar then (area of △ ABC) /( area of △ DE F) = BC2 / EF2 9/16 = BC2 / EF2 2.1 / EF = 3/4 EF = 2.8 cm
A train covers a certain distance at a speed of 48 km/h and the next same distance with a speed of 60 km/h and the next same distance with a speed of 80...
A ferry takes 75 minutes to row to place B from another place A along the stream. The distance between place A and place B is 37.5 km. If the speed of t...
Aman takes 36 minutes more than Sudhanshu to cover a distance of 130 km. If Aman doubles his speed, he takes 42 minutes less than Sudhanshu to cover the...
Buses A and B are moving around a circular ground of radius 350 m. If the speeds of the buses A and B are 11 m/sec and 20 m/sec respectively, then what ...
How much time a train 200 metres long running at the speed of 72 km/hr take to cross a bridge 180 metres in length?
Speed of a car and a bus is 24 km/h and 14 km/h, respectively. If the time taken by the car to cover a distance of ‘8x’ km is 1 hour less than time ...
Traveling at a speed of 's' km/hr, 'C' requires 22 seconds to complete one lap around the perimeter of a circular track with a radius of 35 meters. Dete...
A train has to cover a distance of 90 km in 15 hours. If it covers half the journey in 4/5 th of the time, the speed to cover remaining distance in the ...
Train A running at speed of 81 km/hr crosses a platform having twice the length of train in 12 sec. Train B whose length is 360m crosses same platform i...
The speeds of Ram and Rohan are 40km/hr and 50km/hr respectively. Rohan initially is at a place A and Ram is at a place B. The distance between A and B ...
