Question

At a certain time of a day, the shadow of a 1.5 m tall boy is 3 m long. The shadow of a nearby flagpost at the same time is 12 m long. What will be the height of the flagpost?
15 m
12 m
6 m
9 m​

Answer 1

Height of the boy is 1.5 m and casts a shadow of 3 m

At the same time, a building casts a shadow of 12 m and suppose height of the building is x m

Then ratio of their heights and shadows are in proportion

⇒$\frac{x}{1.5} =\frac{12}{3}$

⇒ x = 1.5 × 12 = 18 / 3

⇒ x = $\frac{18}{3}$

⇒ x = 6

Hence, height of the building is 6 m.

Answer 2

Answer:

Answer:Height of the boy is 1.5 m and casts a shadow of 3 m

Answer:Height of the boy is 1.5 m and casts a shadow of 3 mAt the same time, a building casts a shadow of 12 m and suppose height of the building is x m

Answer:Height of the boy is 1.5 m and casts a shadow of 3 mAt the same time, a building casts a shadow of 12 m and suppose height of the building is x mThen ratio of their heights and shadows are in proportion

Answer:Height of the boy is 1.5 m and casts a shadow of 3 mAt the same time, a building casts a shadow of 12 m and suppose height of the building is x mThen ratio of their heights and shadows are in proportion⇒\frac{x}{1.5} =\frac{12}{3}1.5x=312

Answer:Height of the boy is 1.5 m and casts a shadow of 3 mAt the same time, a building casts a shadow of 12 m and suppose height of the building is x mThen ratio of their heights and shadows are in proportion⇒\frac{x}{1.5} =\frac{12}{3}1.5x=312⇒ x = 1.5 × 12 = 18 / 3

Answer:Height of the boy is 1.5 m and casts a shadow of 3 mAt the same time, a building casts a shadow of 12 m and suppose height of the building is x mThen ratio of their heights and shadows are in proportion⇒\frac{x}{1.5} =\frac{12}{3}1.5x=312⇒ x = 1.5 × 12 = 18 / 3⇒ x = \frac{18}{3}318

Answer:Height of the boy is 1.5 m and casts a shadow of 3 mAt the same time, a building casts a shadow of 12 m and suppose height of the building is x mThen ratio of their heights and shadows are in proportion⇒\frac{x}{1.5} =\frac{12}{3}1.5x=312⇒ x = 1.5 × 12 = 18 / 3⇒ x = \frac{18}{3}318⇒ x = 6

Answer:Height of the boy is 1.5 m and casts a shadow of 3 mAt the same time, a building casts a shadow of 12 m and suppose height of the building is x mThen ratio of their heights and shadows are in proportion⇒\frac{x}{1.5} =\frac{12}{3}1.5x=312⇒ x = 1.5 × 12 = 18 / 3⇒ x = \frac{18}{3}318⇒ x = 6Hence, height of the building is 6 m.