Question

road for 72 km. What would be
9 A 5m 60 cm high vertical polecasts a shadow 3m 20 cm long. Find at the same time
(i) the length of the shadow cast by another pole 10 m 50 cm high (ii) the height of a
pole which casts a shadow 5m long,
in 15 minutes. If the speed remains the same, how far​

Answer 1

Step-by-step explanation:

Direct proportion

( i ) pole = 560cm , 1050cm

shadow = 320cm , ?

560 x another shadow = 320 x 1050

another shadow = 320 x 1050 / 560

= 600cm = 6metre

( ii ) pole = 560cm , ?

shadows = 320cm , 500cm

560 x 500 = 320 x another shadow

another shadow = 560 x 500 / 320

= 875cm = 8m 75cm