Some likely questions that can come on the GTLE

Step 1: Let width be $w$ m. Then length is $(w + 10)$ m.

Formula for perimeter of rectangle:
$P = 2(l + w)$

Step 2: Substitute values.
$60 = 2((w + 10) + w)$

Step 3: Simplify inside parentheses first.
$60 = 2(2w + 10)$

Step 4: Divide both sides by 2.
$30 = 2w + 10$

Step 5: Subtract 10 from both sides.
$20 = 2w$

Step 6: Divide both sides by 2.
$w = 10$

Step 7: Find length.
$l = w + 10 = 10 + 10 = 20$

**Final answer: Width = 10 m, length = 20 m}