Puzzles are puzzles that ensure fast thinking and the correct application of logical skills. These words may scare you into thinking that these puzzles are difficult to solve; they are not. They are quite easy to deal with and don’t require much thought. All you have to do is use your common sense, logic or observation to solve these types of puzzles.
Today we have prepared for you a quiz that asks you to use basic math skills that you may have learned in school. Even 5th graders can solve this tricky puzzle. So are you ready for this brain teaser? Let’s start!
Find the weight of a cat, dog and rabbit in 15 seconds
See the brain teaser image below.
Source: techstarter.com
In the picture above you can see a cat, a dog and a rabbit on the scale. The scale first reads the weight of the cat and the dog. Their total weight is 10 kg.
The second scale reads the weight of the dog and the rabbit. Their total weight is 20 kg.
The third scale reads the weight of dogs and cats. Their total weight is 24 kg.
The fourth scale measures all three animals – the cat, the dog and the rabbit – but their combined weight is unknown. That’s what you have to discover. What is the total weight of a cat, a dog and a rabbit?
All the best!
This is a simple puzzle that requires basic knowledge of arithmetic. You must have practiced math problems like this in elementary school, so use that knowledge here and try to solve this puzzle in 15 seconds. We are paying attention to you. The solution to this puzzle is below. However, please refrain from scrolling straight to the answer without solving this puzzle yourself first.
Meanwhile, can you find the woman’s lost key in 5 seconds?
Whenever you’re ready, scroll down to find a solution.
Solution- Find the weight of the cat, dog and rabbit
Here is the solution to the brain puzzle:
Let the weights of the cat C, the dog D, and the rabbit R.
Now, C + R = 10
D + R = 20
D + C = 24
C + D + R = ???
Let’s use the first equation and find the value of C.
C = 10 – CHEAP
Moving on to the second equation, find the value of D.
D + 20 – CHEAP
Now substitute the values of C and D in the third equation.
(20 – R) + (10 – R) = 24
=> 20 + 10 – R – R = 24
=> 30 – 2R = 24
=> 6 = 2R
=> 3 = CHEAP
So the weight of the rabbit is 3 kg.
Substitute the weight of the rabbit into the final equation.
(C + D) + R = ?
=> 24 + 3 = ?
=> 27
So, the total weight of a cat, a dog and a rabbit is 27 kg.
Alternatively, you can plug the weight of the rabbit into the first two equations and find the weights of the cat and the dog, then use them to solve the fourth equation.
You will see that the cat weighs 7 kg and the dog weighs 17 kg.
We hope you enjoy this brain teaser. Try this well:
Only a detective mind can uncover the real wife of a comatose man in 8 seconds!
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Source: newstars.edu.vn