a two digit number is such thatthe product of its digits is 20.if 9 is added to the number, the digits interchange their places. find the number?
Asked by samridhi arora | 5th Jul, 2013, 08:53: AM
Expert Answer:
Let the digit at the units place and tens place be x and y respectively.
? Original number = 10y + x
Reverse number = 10x + y
Given, product of digits = 20
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Let the digit at the units place and tens place be x and y respectively.
? Original number = 10y + x
Reverse number = 10x + y
Given, product of digits = 20
Answered by | 5th Jul, 2013, 05:28: PM
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