Really simple maths questions?

Question

1. Your wife wants you to clean the house with the vacuum cleaner. The surface of the area is 120 sq.mtr.
It takes you 40 seconds to clean 1 sq.mtr.
How long (in hours and minutes) will it take you to clean 95 sq.mtr?

2. A 1 ltr. bottle of Coke costs $1.50.
A 2.5 lrt coke costs $3.85
You purchase 12 ltrs. of Coke at the cheapest possible price.
What are you going to buy?

3. 2 2/3 + 4 3/4 (Quarters) + 5/6 =
Answer as a fraction:
Answer as a decimal fraction:

4. 1 3/4 (Quarters) + 1/2 + 2/3 =
Answer as a fraction:
Answer as a decimal fraction:

1/2 + 3/4 (Quarters) + 1/3 =
Answer as a fraction:
Answer as a decimal fraction:

Thank you for helping me with this! I'm in grade 3 and I needed some help with my studying. I couldn't ask my mum and dad cause there away on business trip.

Answer 1

If your parents are away on a business trip, you still should have someone with you to help you. We are not here to do your homework.

EDIT: I looked at the other questions you have posted, and I really do not believe that you are in the 3rd grade - which should be about 8 years old.

Answer 2

Well despite all those comments that are true, I'll still reply to this question as it's in the help category..:

1) 40 * 95 = 3800 seconds
3800/3600 > 1 (So at least 1 hour)
(3800-3600) / 60 > 3 (So at least 3 minutes)
---> 1 hour 3 minutes 20 seconds

2) If you take 12 bottles of 1ltr coke --> $18
If you take 4 bottles of 2.5ltr & 2 bottles of 1ltr --> $18.40
If you take 2 bottles of 2.5 ltr & 7 bottles of 1ltr --> $18.20
Thus, 12 bottles of 1ltr are cheapest.

3) 2 2/3 + 4 3/4 + 5/6 = 8/3 + 15/4 + 5/6 = (32+45+10)/12
= 87/12 = 7 1/4

4) 1 3/4 + 1/2 + 2/3 = 7/4 + 1/2 + 2/3 = (21+6+8)/12
= 35/12 = 2 11/12
1/2 + 3/4 + 1/3 = (6+9+4)/12 = 19/12 = 1 7/12

Hope it helped.

Answer 3

1. it takes 95*40 = 3800 seconds = 1 hour 3 minutes and 20 seconds to clean.
2.1 ltr bottle is cheaper than 2.5 ltr bottle so we can buy 12 bottles of 1 ltr. So cheapest possible price is 12*1.5 = $18.
3. Answer as a fraction: 99/12
Answer as a decimal fraction: may be 8 3/12
4. Answer as a fraction: 35/12
Answer as a decimal fraction: may be 2 11/12
5. Answer as a fraction: 19/12
Answer as a decimal fraction: may be 1 7/12

Answer 4

You sure write well to be in the 3rd grade but no I'm not giving you the answers to your homework. That won't help you. (I'm sure someone on here will though ) If you need tutoring go to a free tutoring website, that will help you better than giving you the answers

Answer 5

If they are " Really simple maths questions " then why not answer them ? Must we assume you are more simple than " Really simple " ?

Answer 6

ask this same question in one of the following websites

http://www.answers.com
(or)
http://www.ask.com

Answer 7

time consuming is not my strong points