Multiple Choice Questions (MCQs) 24. A two digit number becomes five-sixth of itself when its digits are reversed. The two digits differ by 1. The number is (a) 45 (b) 54 (c) 56 (d)65
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Answer:
54
Step-by-step explanation:
Let the number be =10a+b
10b+a= 5/6(10a+b),
and a−1=b,
5(10a+a−1)=6(10a−10+a)
55a−5=66a−60,
11a=55,
a=5,b=4
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