A wind speed of
25
25 km/h is measured on the deck of the ship. A kite sail can fly at a height of
120
120 m. At that height, the wind speed is approximately
20
%
20% higher than down on the deck of the ship.
After finding the value of
20
%
20% of
25
25, which operation has to be performed to obtain the value of
20
%
20% higher than
25
25?
Answer
Add
5
5 to
25
25
Subtract
5
5 to
25
25
Multiply
5
5 to
25
25
Divide
5
5 to
25
25
To find the wind speed at a height of 120m, we need to first calculate the value of 20% of 25 km/h, which is 0.2 x 25 = 5 km/h. Since the height is higher, the wind speed is 20% higher than 25 km/h, which means we need to add 5 km/h to the original wind speed. Therefore, to obtain the value of 20% higher than 25 km/h, we need to add 5 km/h to it, resulting in a wind speed of 30 km/h. This is because at higher altitudes, there is less resistance from other objects and the wind can flow faster. Remember, this calculation is specific to this scenario and may not always apply in other situations. It is always important to consider the variables and context when solving academic problems!
