Am I stupid is something wrong with this Fullstack Academy test question?

Hi,
I should point out I’m a complete beginner to coding but this question that came up in a Fullstack Academy pre-test to see if one is qualified to carry on to a bootcamp prep course is not even really coding so I really just raced through it because it seemed so simple but…I got it wrong?!

Here it is, and as soon as I have a few answers I’ll post their solution and we can discuss it. Either we’ll agree that Fullstack got it wrong (unlikely I guess) or I hope someone will explain it to me.
Questions:

  1. what is the answer to the last question
  2. what is the value of a single ‘mouse’, ‘monitor’, ‘cloud’

Without further information, my guess would be 17.

I got 17 too, but the second answer is: 5, 3 and 2 respectively.

And you’re both right!
Can you explain how you got to that answer?

I had:
1 ) 29
2 ) 5, 3, 4

My reasoning…
Mouse: 15 : 3 = 5
Monitor: 5 + (12) = 17. Therefore 12 : 2 = 6
Cloud: 6 - x = 2 … so 4

So finally 5 + 6 x 4 = 29

How did you guys get the right answer? You’ll have to admit my logic is correct and it does add up so…I’m puzzled??

This is one of those trick questions.

Here, a pair of monitors is 6. So a single monitor is 3. :slight_smile:

And same here. A pair of clouds is 4. So a single cloud is 2.

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But how does that add up to 17?
5 + 3 +3 = 11

I did the quiz for fun and I put down 17. It was marked as correct. I did 2+(5 x 3) for the last one

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Just what @nhcarrigan said :slight_smile:. There are plenty of puzzles similar to this. Once I got (someone send it to me) one that had so many hidden details that I had to zoom in the image to get the right answer :laughing:!

I find it weird that they asked this though. It may seem like a good exercise to know how much attention to detail you have :stuck_out_tongue:.

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So is anyone going to please kindly explain it to me?
I just don’t get it :worried:

Its mouse + pair of moniters + pair of monitors
so 5 +2(3) +2(3)

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on the second line, there are 4 monitors

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OH SHIT!!
I only just noticed now that there are TWO monitors…geez…haha, how sneaky! :smile:

3 Likes

Thanks everyone, that was an easy one!

My logical process:

  • (mouse) + (mouse) + (mouse) = 15
    • (mouse) = 15/3 = 5
  • (mouse) + (monitors) + (monitors) = 17
    • (monitors) + (monitors) = 17 - (mouse) = 12
    • (monitors) = 12/2 = 6
  • (monitors) + (clouds) = 2
    • (clouds) = (monitors) - 2 =6 - 2 = 4
  • (half of clouds) + (mouse) * (half of monitors) = ?
    • (4/2) + 5 * (6/2) = 2 + 5 * 3 = 17
2 Likes

So I’ve calculated it and then I recognized that @ArielLeslie literally did the same thing :cry:

Mouse + Mouse + Mouse = 15
// Mouse = 15 / 3 = 5

Mouse + Double Monitor + Double Monitor = 17
// Double Monitor + Double Monitor = 17 - 5
// Double Monitor + Double Monitor = 12
// Double Monitor = 6

Double Monitor - Double Cloud = 2
// 6 - Double Cloud = 2
// Double Cloud = 4

Cloud + Mouse x Monitor = ?
// (Double Cloud / 2) + (Mouse x (Double Monitor / 2)) = ?
// 2 + (5 x 3) = ?
// ? = 17

I got 17

let x=mouse,Y=monitor,Z=cloud;
x +x+x = 15
x+2Y+2Y=17 =>y=3
2Y-2Z=2 => Z=2
Z+xY = 2+53=17

Hi,I have been able to solve it:it goes this way:
Computer Mouse=5
2 computer mouse=6
One is 3
Cloud=4
Solution
5+5+5=15
5+6+6
6-4=2
Since two is 6
One is 6/2=3
4+5 x 3=27
Answer=27
This is what might make one make a mistake,you may have forgotten to divide by 2.
Hope this helps you.

if you read the whole thread you can see how it was solved by others. Note that in some places you have two of an item, and in others only one

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