Question

Dean is going to deliver some goods. he charges £7.00 an hour and 40p per mile for delivery.

he writes down his mileage before and after he has made his journey. this journey takes 2h and 45minutes.
how much does he charge to deliver these goods?​

Answer 1

Explanation:

what we were not told is, if he charges a full hour for a fraction of an hour, or only a corresponding fraction of his hourly rate.

I assume the first : charging a full hour for any fraction of an hour spent.

it took him 2h and 45 minutes, so that is 3 hours charged.

and he was driving

25423 - 25263 miles = 160 miles

so, he charges

3×7 + 160×0.40 = 21 + 64 = £85

if he charges also fractions of his hourly rate, then his hourly charge would be

2 3/4 × 7 = (2×4 + 3)/4 × 7 = 11×7/4 = 77/4 = £19.25

in total that would be

19.25 + 64 = £83.25

Answer 2

See below

Explanation:

Time charge = 2.75 hr * £7.00/hr = £ 1`9.25

Mileage charge = ( 25423 - 25263) mi * 40p / mile = 6400 p

(edited: forgot to multiply by 40p)

Now add the two charges together : 19 + (.25 * 240) + 6400/240 =

£ 45.92

( I think <===if I correctly did the monetary conversion between pence and pounds! <=== I used 240 p = 1£ )