Question

Pins were used to fixing a string onto a board. Each pin was placed 30 cm apart. One pin was placed at the start point and one pin at the end of the string. A total of 15 pins were used. What is the length of the string in meters​

Answer 1

4.5 meters

Explanation:

If the pins were placed 30 cm apart, and there were a total of 15 pins, then the length of the string is 30 cm * 15 pins = <<30*15=450>>450 cm.

To convert this length to meters, we divide the number of centimeters by 100: 450 cm / 100 = 4.5 meters.

Therefore, the length of the string is 4.5 meters.