CBSE Class 8 Answered
sum of 2 digit number is 9 .when we inter change the digits ,it is found that resulting new numberis greater than the original number by 27 what is yhe 2 digit number im
Asked by shivaniashuglass | 28 Aug, 2020, 05:12: PM
Expert Answer
Let the digit at the ten's place x → digit at the unit place = 9 - x
Required two digit number = 10x + 9 - x = 9x + 9
According to the condition,
10(9 - x) + x = 9x + 9 + 27
→ 90 - 10x + x= 9x + 36
→ 90 - 9x = 9x + 36
→ 18x = 54
→ x = 3
Required two digit number = 9(3) + 9 = 36
Answered by Yasmeen Khan | 28 Aug, 2020, 07:01: PM
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