Question

Mauro and Dan each bought a computer screen and a memory stick.
Here is some information about how much they paid.
Screen
Memory stick
Mauro
£120
£15
Dan
20% more than Mauro
10% less than Mauro
Work out how much Dan paid in total.

Answer 1

Answer:

Dan paid 157.5 for both the screen and the memory stick. He paid 144 for the screen and 13.5 for the memory stick.

Step-by-step explanation:

You can set up as an equation or proportion like for the screen its x/120=20/100 and the /100 part are always the percent. You can cross multiply and 20x120=2400 then /100=24. He paid more than Mauro, so you add 24+120=144. Then do the same thing for the memory stick but put 15 instead. x/10=15/100.10x15=150/100=1.5. This time, it's less than, so you subtract 1.5 from 15 and get 13.5. Lastly, you add both to get how much Dan paid in total. Have a great day, and I hope this helps!