Question

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.?​

Answer 1

Answer:

81

Step-by-step explanation:

agar 3 coaches ha to. ok