Question

1.the product of two digit number is 1728. if the product of the units digit is 8 and that of tens digit is 15, find the numbers.​

Answer 1

Answer:

let the first digit be xy and second be az (as it has both units and tens digit )

Given ,

\begin{gathered}xy \times az = 1728 \\ y \times z = 8 \\ x \times a = 15 \\ \end{gathered}

xy×az=1728

y×z=8

x×a=15

By trial and error method the answer is x=3,y=2,a=5,z=4