1.

A tree with a height of 4m casts a shadow of 15m long on the ground. How high will a similar tree be, if it casts a shadow of 20 m long?

Answer»

\frac{4}{15}  =  \frac{x}{20}  \\ x =  \frac{4 \times 20}{15}  \\ x =  \frac{16}{3} m



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