Question

There are about 400 cocoa beans in a pound.There are 2.2 pounds in a kilogram.About how many grams does a cocoa bean weigh?

Answer 1

2.2 pound = 1 kilogram
1 pound =
`(1)/(2.2)` =
`(5)/(11)`
400 pounds =
`(5)/(11)` x 400 =
`(2000)/(11)`

1 kilogram = 1000 grams

`(2000)/(11)` killograms =
`(2000)/(11)` x 1000 = 18181.82 grams