Question

The ceiling of a house is 30 m long and 20 m wide. How much will be spent on paint if one big can costs 720 dollars and can cover 50 m^2?

Please answer clearly and explain the solution clearly and easy to understand. Thanks!
(guaranteed medal for a good answer)

Answer 1

okay, the ceiling is 30m long and 20 m wide, so what is the area of a rectangular ceiling which has length 30m and width 20 m?

Answer 2

moongazer, you need to work with me here, and in the process find the solution to the problem

Answer 3

do you know how to find the area of a rectangle?

Answer 4

Paint is expensive, must be a big can, regardless one can will cover 50 square meteres of roof area. So lets find how many square meters total is in the roof.

Sq Meter roof area = 30m x 20m or 600 sq meters.
Now how many cans? Since 1 can will cover 50 sq meter we will need 600/50 or 12 cans is needed. No of cans = 12.

Now if one can truly cost $720 then 12 cans will cost 12 x $720.00 =$8,640

Answer 5

the answer is $8640

Answer 6

sorry for the late reply, anyway, i slightly understood it

Answer 7

Is slightly good enough?

Answer 8

can you give another example?
and i'll solve it

Answer 9

Yes. Here is a sample
The ceiling of a house is 40 m long and 15 m wide. How much will be spent on paint if one big can costs 420 dollars and can cover 50 m^2? Please answer clearly and explain the solution clearly and easy to understand. Thanks!

Answer 10

Take your time, and logically attack this problem.

Answer 11

5040

Answer 12

am i right?

Answer 13

How many square meters was the roof area?

Answer 14

600

Answer 15

Yes, and how many cans that can cover 50 sq meter would you need?

Answer 16

12

Answer 17

Then you are right. Good job moongazer.

Answer 18

i have another question

Answer 19

Go ahead with the question

Answer 20

why do i have to divide the 600 to 50 just please explain so that i will have no doubt when dividing again, i am just having doubt even i know why should i divide it
sorry it my question is complicated :)

Answer 21

The 600 is the area in square meters of the roof. One can of paint will cover 50 square meters. One can ain't gonna cut it! You will need more........but how much??? enough to cover 600 square meters which is 12 times what one can can cover.

To find out, how many 50's are in 600, you divide the 600 by 50

Answer 22

Does that make any sense?

Answer 23

thanks i will have no doubt now :)

Answer 24

Great, and good luck with your studies.

Answer 25

thanks!
i am reviewing for a state university exam, and there many things needed to be studied
i hope i will pass
pray for me :)