[" drives from place A to B with a uniform speed of "30lem" h- "^(" -s ")" and returis from place "B" bo "" A "],[" speed of "20lm" he hind his average speed."]

A motorcyclist drives from A to B with a uniform speed of 30 km h^(-1) and returns back with a speed of 20 kmh^(-1) . Find its average speed.

A motorcyclist drives from A to B with a uniform speed of 30 km h^(-1) and returns back with a speed of 20 kmh^(-1) . Find its average speed.

A man travels from Kalighat to Tarakeswar with a uniform speed of u km/h and returns from Tarakeswar to Kalighat with uniform speed of v km/h. Show that his average speed is the harmonic mean between u and v.

A motor cyclist drive from A to B with uniform speed of 30km/hour and returns back with a speed of 20 km/hour. Find the average speed.

A person travels from A to B with a speed of 30 km /h. He returns from B to A at with speed of 20 km / h. What is his average speed in the entire journey? एक व्यक्ति A से B तक 30 km/h की गति से जाता है | वह B से A तक 20 km/h की गति से वापस लौट आता है| पूरी यात्रा में उसकी औसत गति कितनी है ?

A car travels 30 km at a uniform speed of 40 km//h and the next 30 km at a uniform speed of 20 km//h . Find its average speed.

A person goes from A to B with a speed of 30 km/h. He comes back from B to A with a speed of 20 km/h. What is his average speed for the entire journey ?

A motorcylist drives from A to B with a unit speed of 30 kmh^-1 and returns back with a of 20 kmh^-1 . Find its average speed.

A car travels 30 km at a uniform speed of 40 km/h and the next 30 km at a uniform speed of 20 km/h . Find its average speed.