Can Anyone Help With Answer For Quiz Question - Add One Straight Line To Make The Equation 5+5+5=550 Correct

[Mara127]

can anyone help with answer for quiz question - add one straight line to make the equation 5+5+5=550 correct

also

how do you make the Roman numeral equation XI + 1 = X correct without changing it?

also

How many 6 inch square bricks will it take to complete a 5 foot x 1 foot wall

Many thanks

[scorpiojo]

2 seen as turn it upside down

[sandyRoe]

roman numerals, turn the page upside down?

[mallyh]

2 I+Ix = 10

[sandyRoe]

3...20

[Calibax]

2 Turn it upside-down X = I + IX

[bibblebub]

5+5+5 ≠ 550

[Spotty Dog]

Make the plus sign between the first two 5s into a 4, giving the sum 545 + 5 =550.

[Sam1960]

add the straight line to one of the + signs to make 545 + 5 +550

[Calibax]

5+5+5 ≠ 550

[Sam1960]

^ sorry that should be = 550

[Mara127]

Thanks everyone for your answers much appreciated.

Also another question

How many 6 inch square bricks will it take to complete a 5 foot x 1 foot wall

[scorpiojo]

20?

[scorpiojo]

No, can't count

[scorpiojo]

On the other hand...20

[sandyRoe]

Yes you can, Jo. It is 20

[scorpiojo]

Thanks, sandy :)

[Calibax]

Since these seem to be logic problems rather than straight maths, 20 is too obvious an answer.
It takes ONE brick to complete the wall. After the first 19 it is still incomplete!

[Mara127]

Thanks guys very helpful. Here are some more riddles (lateral thinking required)
1. What kind of running means walking?
2. If there are 3 apples and you take away 2 how many do you have?
3. Why is 7 x 7 = 50 like your left eye?

[Captain2]

2 Two because that's how many you are taking away/with you

[Captain2]

3 Because it's not right?