There are 14 pieces of chalk and 42 packages of construction paper to be boxed. Each box must contain
only one type of item, and every item must be boxed. What
is the most that can be placed in a box so that each box
has the same number of items?
A.7
B.10
C.14
D.21

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distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.