The difference of digits of a two digit number is 4. If the places of the digits is
interchanged then the sum of the new number and the original number is 154, find the
number
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The difference of digits of a two digit number is 4. If the places of the digits is
interchanged then the sum of the new number and the original number is 154, find the
number
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Answer:
95
Step-by-step explanation:
let the digit at once place be x and at once place be y
so, x - y = 4
=> x = y+4
Also,
10x + y + 10y + x= 154
11 x + 11 y = 154
11(x+y) = 154
x+ y= 154÷11
x+ y = 14
now, y + 4+ y = 14
2 y = 14-4
y = 10÷2
y = 5
then, x=5+4
x = 9
so the no. is 95