Wipro Company Numerical Ability Number System

The difference between a two digit number and the number obtained by interchanging the digit ' s is 27. Find the difference of the two digits of the number ?

a. 5
b. 4
c. 3
d. 2

Read Solution (Total 1)

let the two digit number be 10x+y, then it's reverse is 10y+x
given,
(10X+y)-(1oy+x)=27

x-y=3.....
11 years agoHelpfull: Yes(0) No(0)

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Two vessels A and B contain petrol and diesel in the ratio 7 : 5 and 17 : 7 respectively. In what ratio mixtures from A & B must be mixed to get a new mixture containing petrol and diesel in the ratio 5 : 3 ?

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