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Smita was asked to multiply a certain number by 36. She multiplied it by 63 instead and got an answer of 3834 more than the correct one. What was the number to be multiplied?

152
126
142
148

Correct Answer: 142

Explanation:

Let us assume the certain Number is A.
According to question,
63A = 3834 + 36A
63A - 36A = 3834
⇒ 27A = 3834
⇒ A = 142

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