Question

Ben has a rope that is 468 inches long. He joins another rope of length 4 inches to the end of the first rope, and then cuts off 27 inches of the rope. What is the final length of the rope?

• A. 465 in
• B. 435 in
• C. 445 in
• D. 455 in

Answer 1

The correct option is C 445 in

Given, Ben has a rope that is 468 inches long. He joins another rope of length 4 inches to the end of the first rope.
So, the length of the rope formed = (468 + 4) in

468 + 4 = 468 + 2 + 2 = 472

(468 + 4) in = 472 in

Ben cuts off 27 inches of the rope.
So, the final length of the rope = (472 − 27) in

Let’s subtract 27 from 472.
Step 1: Round off 27 to nearest 10 by adding 3. (The first step is to make the subtrahend a friendly number using addition or subtraction.)
27 + 3 = 30

Step 2: Subtract 30 from 472.
472 − 30 = 442

Step 3: Add 3 to 442.
442 + 3 = 445

So, (472 − 27) in = 445 in
So, the final length of the rope is 445 in.