Question

If the length of the ladder is 1 foot and the length of the key is 2 inches, then which of the following can be the estimated length of the umbrella?

• A. 3 inches
• B. 2 feet
• C. 10 inches
• D. 5 inches

Answer 1

The correct option is D 5 inches

$\text{Say:}$Let’s find out the estimated length of the jar if the ladder is 1 foot long and the key is 2 inches long.

$\text{Steps:}$
$\bullet$ We know that 1 foot = 12 inches

$\bullet$ So, the length of the ladder is 12 inches, and the length of the key is 2 inches.

$\bullet$ Now, the jar is smaller than half of the length of the ladder; so its length is less than 6 inches.

$\bullet$ The length of the umbrella is almost double the length of the key.

$\bullet$ The length of the umbrella is more than 2 inches and less than 6 inches.

$\bullet$ Hence, from among the given options, the length of the umbrella can be 5 inches.

$\bullet$ Option D is correct.