Question

20 m are of equal sizes and are at an equal distance from one another. The lengths of the engine and the coach are 15 m and 20 m, respectively. The distance between two adjacent coaches is 3 m. Write down an expression to show the length of the train if there are n coaches in the train. 15 m 3 m Fig. 13 4.3 Jai travelled to his village to meet his grandmother. He covered the total distance in 6 hours. He covered the first 10 km by bus, the next 15 km by train, and the remaining distance by a boat. Write an expression to show his speed for the entire journey. (Hint: Distance = Speed Time) Inner 4.4 Fig. 14 shows a dartboard. A player can score 50 bullseye Did you know? points for hitting the dart inside the inner bullseye The chances of hitting the and 25 points for hitting inside the outer bullseye, inner bullseye are very If a player hits the inner and the outer bullseye m and n times, respectively, how many points does low - only 1 in a 100 darts thrown will hit it he score? 5 20 12 18 13 10 16​

Answer 1

Answer:

4.2 Fig. 13 shows a train where the train coaches are of

equal sizes and are at an equal distance from one another. The lengths of the engine and the coach are 15 m and 20 m, respectively. The distance between two adjacent coaches is 3 m. Write down an expression to show the length of the train if there are n coaches in the train.