four dozen letters weigh 1kg 200g find the weight of

Question

a 1 letter b 10 letters c 38 letters if each weighs the same amount.

please reply asap thank you:D

Answer 1

4 dozen = 4*12 = 48 letters

so
1.200 kg/48 letters
is our conversion factor, same top and bottom

a)
1 let (1.2 kg/48 let) = .025 kg or 25 grams

b)
then 10 let = .25 kg = 250 grams

c)
38 let(1.2kg/48 let) = .95 kg = 950 grams

Answer 2

thank you damon

Answer 3

You are welcome.