19. Three types of pencils, J,K, and L, cost $0.05, $0.10, and $0.25 each, respectively. If a box of 32 of these pencils costs a total of $3.40 and if there are twice as many K pencils as L pencils in the box, how many J pencils are in the box?
(A) 6
(B) 12
(C) 14
(D) 18
(E) 20
Visit comments section for Answer and Explanation.
from the information available in the question J, K , L becomes (32-3L), 2L, L
ReplyDeleteequation of the question:
.05*(32-3L) + .1*2L +.25*L = 3.40
=> 32-L = 14
Hence Answer C