Question

Blue pens come in packages of 2 and black pens come in packages of 5.

Answer 1

Answer:

the answer is C, 7

Step-by-step explanation:

it is 7 because 2 doesnt go into 5 evenly so you would have to buy 2 packs of black pens (which would equal 10 black pens)

and then to get 10 blue pens you would have to buy 5 packs because 2x5=10 so 5 blue packs plus 2 black packs (2+5) = 7

your welcome.

Answer 2

Option (C)  

Answer:

The fewest total number of packages you can buy to have equal numbers of blue and black pens is 7

Solution:

Given that blue pens comes in packages of 2 and black pens come in package of 5.

We need to evaluate fewest total number of packages, so that we can have equal number of blue and black pens.

1 pack of blue pen = $1 \times 2$ = 2 blue pens

2 pack of blue pen = $2 \times 2$ = 4 blue pens

3 pack of blue pen = $3 \times 2$ = 6 blue pens

4 pack of blue pen = $4 \times 2$ = 8 blue pens

5 pack of blue pen = $5 \times 2$ = 10 blue pens

Now let’s look on data of black pen,

1 pack of black pen = $5 \times 1$ = 5 black pens

2 pack of black pen =$5 \times 2$ = 10 black pens

So from above data, we can say that 5 pack of blue pens and 2 packs of black pens will have 10 blue pens and 10 black pens.

So total number of packages = 5 pack of blue pen + 2 pack of black pen

= 7 packs

Hence we need to buy at least 7 packages, 5 of blue pens and 2 of black pens so that we can have equal number of blue and black pens. Hence option (C) is correct.