Question

Please help me please

Answer 1

Malcolm's maximum speed was 280 km/h and Ravi's maximum speed was 240 km/h.

Explanation:

Step 1:

Assume Malcolm's maximum speed was x and Ravi's maximum speed was y.

The average of their maximum speeds was 260 km/h.

So
`(x+y)/(2) = 260.`

`x+y=520.` Take this as equation 1.

If their maximum speeds are doubled, Malcolm's maximum speed would be 80 km/h more than Ravi's.

So
`2x = 2y+80.` Take this as equation 2.

Step 2:

If we divide equation 2 by 2, we get

`x=y+40.` Take this as equation 3.

Substituting equation 3 in equation 1, we get

`y+40+y=520.`

`2y+40=520.`

`2y = 480, y = 240.`

`x = 240+40 = 280.`

So Malcolm's maximum speed was 280 km/h and Ravi's maximum speed was 240 km/h.