A student was asked to multiply a number by 12 by mistake he multiplied by 21 and got the answer 63more than the correct answer what is the ca
Answers
STEP 1: Find x:
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Let the number the student multiplied the number by be x
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STEP 2: Form equation:
Correct Computation = 12x
Wrong Computation = 21x
21x - 12x = 63
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STEP 3: Solve x:
21x - 12x = 63
Combine like terms:
9x = 63
Divide both sides by 9:
x = 7
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STEP 4: Find the correct answer:
Correct answer = 12x = 12(7) = 84
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Answer: The correct answer is 84.
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Correct computation = 12x
Wrong computation = 21x
21 x - 12 x = 63
9 x = 63
x = 7
Now 12 x = 12 ( 7 ) = 84
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