Question

what length of 2-in. by 4-in. material will be required to make twelve bench legs each 15 5/8in. long

Answer 1

Remark

The easy way to do this is to change 5/8 to a decimal and worr y about changing it back to a fraction if you need to.

15 5/8 = 15.625 The easy way to find 5/8 is to use your calculator. 5 ÷ 8 = on most calculators.

You want 12 of these

1 leg is 15.625 inches long.

12 legs = x

1/12 = 15.625 / x Cross multiply

x = 12 * 15.625

x = 187.5 inches

Just how many feet is that? Divide by 12 to get the number of feet 187.5 / 12 =

15.625 feet.

Usually 2 by 4s are 8 or 12 feet long. For 8 feet you will need 2 of them and for 12 feet unfortunately you will need two as well.