weight

[smclean23]

. The only contents of a parcel are 25 photographs and 30 negatives. What is the total weight, in ounces, of the parcel’s contents?
(1) The weight of each photograph is 3 times the weight of each negative.
(2) The total weight of 1 of the photographs and 2 of the negatives is ounce.

[iwill]

My choice is C.

1) INSUFFICIENT . We dont know the individual weight.

2) INSUFFICIENT .The photographs n negatives are not in the ratio 1:2

when combining 1 and 2, it is Sufficient.

Let P be the weight of photograph
and N be the weight of negative.

From 1, we know P = 3N
as per 2, P+2N = 1 ounce.

ie. P+2/3 P = 1.
i.e. P = 3/5 ounce.

and weight one Negative = 1/5 ounce.

This is sufficient to find out 25P+30N

[raunekk]

imo:c

thx

[Mustang]

C should be correct