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प्रश्न
If a number is tripled and the result is increased by 5, we get 50. Find the number.
उत्तर
Let the required number be x.
According to the question, the number is tripled and 5 is added to it
∴ 3x + 5
or, 3x + 5 = 50
or, 3x + 5 − 5 = 50 − 5 [Subtracting 5 from both the sides]
or, 3x = 45
or, `(3x)/3=45/3` [Dividing both the sides by 3]
or, x = 15
Thus, the required number is 15.
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