Question

Find the total length of a rope if two ropes of lengths $\frac{1}{10}$ m and $\frac{1}{5}$ m are joined together.

• A.
  $\frac{3}{5}$ m
• B.
  $\frac{2}{3}$ m
• C.
  $\frac{1}{4}$ m
• D. $\frac{3}{10}$ m

Answer 1

The correct option is D $\frac{3}{10}$ m

Since we know that 1 m = 100 cm,
Length of 1st rope
= $\frac{1}{10}$ m = 100 $÷$ 10 = 10 cm
Length of 2nd rope= $\frac{1}{5}$ m
= (100 $÷$ 5) = 20 cm
=>
Total length = 10 m + 20 m = 30 cm = $\frac{3}{10}$ m