Question
Solve the following equation by trial and error method: $3y = 36$

Answer

The given equation is $3y = 36$ We guess and try several values of $y$ to find $L.H.S.$ and $R.H.S.$ and stop when $L.H.S. = R.H.S.$
y L.H.S. R.H.S.
$7$ $3 \times 7 = 21$ $36$
$9$ $3 \times 9 = 27$ $36$
$10$ $3 \times 10 = 30$ $36$
$12$ $3 \times 12 = 36$ $36$
When $y = 12,$ we have $L.H.S. = R.H.S$ So $y = 12$ is the solution of the given equation.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free