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Plz Explain Step By StepFour times a certain 2Two digit number is 7 times the number obtained on interchanging its digits if the difference between the digits is 4 .find the number |
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Answer» Answer: These are 4 and 8. LET the no.'s be x and y... 4(10x+y) = 7 (10y+x) 40x+4y = 70y + 7x 33x = 66y x= 2Y..............(1) ACCORDING to qn x-y=4 (let x grtr than y) x= 4+y... PUT in (1) 4+y = 2y y= 4.. so, x= 4+4 = 8..
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