1.da sum of a 2digit no.and the no. obtained by reversing the order of its digits is 165.if da difits differ by 3, find da no.(here why do v take both x-y nd x+y)
2.the sum of a numerator and da denominator of a fraction is 18.if da denominator is increased by 2,the fraction reduces to 1/3.find da fraction
3.A is elder to B by 2 yrs.A's father F is twice as old as A nd B istwice as old as his sister S.if the ages of da father nd sister differ by 40 yrs,find da age of A.
Hi!
Here is the answer to your question.
(1)
Let the digits at unit’s place and ten’s place be x and y respectively.
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