Question

If an airplane travels 440 miles in 4 hours, then

• A. Speed of the aeroplane is 110 miles per hour.
• B. Speed of the aeroplane is 220 miles per hour.
• C. Distance travelled in seven hours is 880 miles.
• D. Distance travelled in seven hours is 770 miles.

Answer 1

Answer: (A), (D)

Distance travelled in seven hours is 770 miles.

Distance travelled by aeroplane in 4 hour is 440 miles

Speed of the airoplane is equal to the distance travelled by the airoplane per hour.

Speed of the aeroplane $=440÷4$ miles per hour

Let's divide $440÷4:$
Speed of the aeroplane is $110$ miles per hour.

$\therefore$ Distance travelled in seven hours
$=\text{Speed of the airoplane}\times \text{time}$
$=110\times 7$
$=770$ miles