In this Math Puzzle, we have to find the value of Red Fish and Blue Fish to solve this difficult math puzzle. Are you a math genius? Only 1% of people with high IQ can solve this difficult math puzzle in 20 seconds.
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Answer: Blue fish = 3 and Red fish = -2
Explanation:
We will call the Blue Fish X and the Red Fish Y.
Let’s look at the equations mathematically.
9X – 11Y = 49 …………. (Equation 1)
13X – 12Y = 63 ………….. (Equation 2)
We will solve the problem using the elimination method.
We will have to make the X coefficients the same by eliminating terms with ‘X’.
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We will multiply equation (1) by 13 and equation (2) by 9, then we will subtract equation (2) from (1).
=> 13 x (9X – 11Y) = (49) x 13 ………. Equation 1
=> 9 x (13X – 12Y) = (63) x 9 ……….. Equation 2
We get,
=> 117X – 143Y = 637
=> 117X – 108Y = 567
Let’s subtract both of these equations. (We will subtract the LHS of Equation 1 from the LHS of Equation 1 and the RHS of Equation 2 from the RHS of Equation 2).
=> 117X – 143Y – (117X – 108Y) = 637 -567
=> 117X – 143Y – 117X + 108Y = 70
Both 117X and -117X cancel each other out.
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Now we get:
=> -143y +108y = 70
=> -35y = 70
=> y = -2
Now, we put the value of Y into equation (1) and solve to find the value of X
=> 9X – 11Y = 69
=> 9X- 11(-2) = 49
=> 9X +22 = 49
=> 9X = 49 -22
=> 9X = 27
=> X = 3
Therefore, the value of X (which is Blue Fish) is 3 and Y (which is Red Fish) -2 respectively.
Great job!
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