Question

A tree watering tanker cover 38 trees in 2 hours. How many trees will it water in 6 hours?

Answer 1

☯ GIVEN :

• The tree watering tanker covers 38 trees in 2 hours.

☯ TO FIND :

• Total trees covered in 6 hours.

➲ SOLUTION :

There are two methods for solving the given question : Using unitary method and formula.

Using First Method :

Total trees covered in 2 hours = 38

Total trees covered in 1 hour = 38/2

Total tress covered in 6 hours = 38/2 × 6

Total tress covered in 6 hours = 19 ×6

∴ Total tress covered in 6 hours = 114

Using Second Method :

Total trees covered = 38

Time taken = 2 hours

$\bf{Speed = Total \:Trees \:covered / Total\: time \:taken}$

Speed = 38/2

Speed = 19 trees per hour

Again,

$\bf{Total \:trees\: covered = Speed \times Total \:time \:taken}$

Total trees covered =19 ×6

∴ Total trees covered in 6 hours = 114