Question

1Alfred departs from NAMPO Park

at 18:45 and travels to Sasolburg at
an average speed of 88 km/h. He
calls his wife to inform her that he
will arrive in Sasolburg at 8 pm.
Verify, with calculations, whether his
estimate is correct.

You may use the formula:
Distance= Speed x time ​

Answer 1

Alfred will not arrive in his city at 8 PM, but he will arrive at approximately 8:20 PM.

Explanation:

Since Alfred departs from NAMPO Park at 18:45 and travels to Sasolburg at an average speed of 88 km / h, and he calls his wife to inform her that he will arrive in Sasolburg at 8 pm, to determine if his estimate is correct the following calculations must be performed:

The shortest route from Nampo Park to Sasolburg in South Africa is 139 km via Route 59.

8 PM = 20:00

20:00 - 18:45 = 1:15

139/88 = 1.57

60 x 0.57 = 34.74

Thus, Alfred will not arrive in his city at 8 PM, but he will arrive at approximately 8:20 PM.