Posted by **thomas** on Sunday, April 13, 2014 at 5:09pm.

The number of washers 3/32 inch thick that can be cut from a piece of stock 25 1/2 inches long, allowing 1/16 inch for waste for each cut is

a. 160

b. 163

c. 260

d. 272

e. 408

please answer and explain

- math -
**Nicola**, Sunday, April 13, 2014 at 5:29pm
For one washer you must include the waste and the width so..

(3/32)+(1/16)=5/32 or 0.15625

You have 25.5 inches of pipe so how many washers can be taken from it..

25.5/0.15625=163.2

Rounding to the lower number as it will only make .2 of the 164th washer means b is the answer

- math -
**Damon**, Sunday, April 13, 2014 at 5:33pm
number of cuts = (n-1)

amount wasted = 1/16 * (n-1)

amount total = (3/32) n + (1/16) n - 1/16

so

25 16/32 = 5 n/32 -2/32

816/32 +2/32 = 5 n/32

818 = 5 n

n = 163.6 so 163

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