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CBSE Class 10 Answered

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 | 05 Jul, 2013, 08:53: AM
answered-by-expert Expert Answer
Let the digit at the unit’s place and ten’s place be x and y respectively.
 
? Original number = 10y + x
Reverse number = 10x + y
 
Given, product of digits = 20
 
Answered by | 05 Jul, 2013, 05:28: PM

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