Question

A pole of height 4.5 m casts a shadow 1.25 m long at a given time during the day.
(a) What will be the length of shadow of a pole of height 13.5 m at the same time?
(b) What is the height of a pole that casts a shadow of length 2.5 m at the same time?​

Answer 1

Step-by-step explanation:

(a) since all calculation are being done on same time situation of day

Let length of shadow of pole = L

height of first pole ÷ length of shadow of first pole

= height if second pole ÷ length of second shadow

4.5 ÷ 1.25 = 13.5 ÷ L

solving this we get L= 3.75 m

(b) Proceeding in above manner

4.5 ÷ 1.25 = L ÷ 2.5

solving this we get L = 9 m