Question

Mr Dyson bought 5 gallons of paint. He used 3/4 of the 5 gallons to paint his house.

How much paint did Mr. Dyson use?
A 3 3/4 gallons
B 4 1/4 gallons
C 4 3/4 gallons
D 3 1/4 gallons

Answer 1

I think 3 3/4 (A)

Explanation:

Each gallon is 20 percent, while 3/4 is 75 percent. Divide 20 by 4, which is the denominator. The answer is 5. Every time you get a 5, that's a 1/4. For example:

25: 1 1/4

30: 1 2/4 (1/2)

35: 1 3/4

40: 2

Now, 75 is between 3 and 4 gallons, but it is lower than 4, so B and C are wrong. Let's do the math again.

65: 3 1/4

70: 3 2/4 (1/2)

75: 3 3/4

Remember, 3/4 is about 75%. which means, A is the answer!