38 millimeters is equal to which of the following inches?

• A. 1.25 in
• B. 1.5 in
• C. 1.75 in
• D. 2.0 in

Answer: (B)

Converting millimeters to inches uses the relation that one inch equals 25.4 millimeters. So 38 millimeters divided by 25.4 is about 1.496 inches, which rounds to 1.50 inches. The option that matches this closest is 1.5 inches. The other choices correspond to 31.75 mm, 44.45 mm, and 50.8 mm, which are farther from 38 mm. Therefore, the best match is 1.5 inches.