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A number consists of two digits, the difference of whose digits is 3. If 4 times the number is equal to 7 times the number obtained by reversing the digits, find the number. |
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Answer» Step-by-step explanation: let the NUMBER be 10x+y given x-y=3 A.T.Q 4(10x+y)=7(10y+x) 40x+4y=70y+7x 33x=66y 33x-66y=0 x-2y=0 from (i) y=x-3 putting the VALUE we get x-2(x-3)=0 x-2x+6=0 -x=-6 (x=6) substituting the values, x-y=3 6-y=3 (y=3) HENCE the number is 10x+y i.e., 10(6)+3=63 ans. hope it helps..... mark it as brailiest |
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