Question

Robert purchased $2,000 worth of U.S. savings bonds. If bonds are sold in $50 or $100 denominations only, which of the following CANNOT be the number of U.S. savings bonds that Robert purchased?

Answer 1

...?

Answer 2

I got 27

Answer 3

no its 50 my bad

Answer 4

you said, "...which of the following....", but there's no options? :/

Answer 5

29
27
30
40
50

Answer 6

there they r^^^^

Answer 7

how would u solve for 27 and 29?

Answer 8

50x+100y=2000
x+2y=40
neither can be 29
neither can be 27
if x is 30 then y is 5
if x is 40 then he only bought $50 bonds
neither can be 50
dang! im confused now O.o

Answer 9

if it's 40, then he bought only $50 bonds, hence $50*40=$2000
if it's 30, then he bought 10 $100 bonds, and 20 $50 bonds,
hence 10*$100 +20*$50=$1000+$1000=$2000
if it's 50, it's not possible, cos no matter the ratio, he will buy more than $2000 worth of bonds
i don't know how to go about 27 and 29

Answer 10

are you allowed to make multiple choices of answers or just 1?

Answer 11

more than one

Answer 12

so its 27 and 50?

Answer 13

and 29?

Answer 14

that's what i would go for, i'm convinced those are the answers :)
27,29, and 50

Answer 15

Thanks so much saso!!!!!

Answer 16

anytime :)