Question 254492
Let M = mara and A = Aina
Mara is twice as old as Aina translates to
(i) {{{M = 2A}}}
In 10 years, the sum of their age, will be 44 translates to
(ii) {{{M + 10 + A + 10 = 44}}}
by substitution of (i) into (ii) we get
(iii) {{{2A + 10 + A + 10 = 44}}}
we get
{{{3A + 20 = 44}}}
{{{3A = 24}}}
{{{A = 8}}}
Mara = 16 and Ania = 8.