A two-digit number is such that the product of its digit is 18. When 63 is subtracted from the number, the digits are reserved. Find the number.
Quadratic Equations
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Question

A two-digit number is such that the product of its digit is 18. When 63 is subtracted from the number, the digits are reserved. Find the number.

KnowledgeBoat · Accepted Answer

Let tens digit be x and units digit be y. Given, The number = 10x + y = Reversed number = 10y + x = Given, if 63 is subtracted from the number, the digits are reserved. As the digit of a number cannot be negative. So x = 9. y = = 2 The number = 10x + y = 10 9 + 2 = 90 + 2 = 92 Hence, the number = 92.

Mathematics

A two-digit number is such that the product of its digit is 18. When 63 is subtracted from the number, the digits are reserved. Find the number.

Quadratic Equations

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