Question

the number of two digits below 50. the sum of the two digits is 13. the product of the digits is 36 then what would be the number?​

Answer 1

Question:- The number of two digits below 50. the sum of the two digits is 13. the product of the digits is 36 then what would be the number?

Solution:- Let numbers be 'x' and 'y'.

=>xy=36

=>x+y=13

=>x=13-y

We get quadratic equation:-

=>(13-y)y=36

=>y^2-13y+36

we get 4,9 as roots.

=>x=4 then y is 9 below 50.

49 is the number.

=> x=9
and y=4

So, 94 is rejected as it is more than 50.