Question

a number consists of two digits the sum of which is 5.if digit in the tens place increased by 1 the digit will be equal yo 1/8 of the given number.find the number

Answer 1

Let number be xy
Therefore
x+y=5
Ordered pairs are (1,4),(2,3),(3,2),(4,1),(5,0)
and
x+1=1/8(xy)
Thus from ordered pairs(3,2) fits
Thus number is 32
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