Bunuel wrote:
Machine P produces parts thrice as fast as machine Q does. Machine Q produces 300 parts of product R in 60 minutes. If each machine produces parts at a constant rate, how many parts of product S does machine P produce in 10 minutes, if each part of product S takes 5/2 times of the time taken to produce each part of product R?
(A) 30
(B) 40
(C) 50
(D) 60
(E) 75
Hello
Bunuel - GMAT club Quant Infinity - i couldnt understad what infinity is until i started following your posts
i have a frank question to you
just keep it secret please only between you and me
what is your opinon about the wording of this word problem ?
the wording is quite VAGUE because the question is :
If each machine produces parts at a constant rate, how many parts of product S does machine P produce in 10 minutes, if each part of product S takes 5/2 times of the time taken to produce
each part of product R?
it says to produce EACH PART.
so based on the above question if Q produces 300/60 = 5 parts a minutes and P`s rate 900/60= 15 parts a minute , THEN HOW SHOULD I FIND, HOW MANY MINUTES/ SECONDS DOES IT TAKE TO PRODUCE EACH PART , because the question mentiones "5/2 times of the time taken to produce
each part of product R?" it mentiones the word EACH PART.
so following such logic to find the time of P to produce EACH part i divided 15 parts by 60 SECONDS , because it takes 1 minute to produce 15 parts. Am i not correct ? if not, pls explain
p.s.
gmat quant preparation and division by zero have something in common i think …. that moment when i am infinite...indeed