GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 15 Oct 2019, 14:30

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# A company assembles two kinds of phones: feature and smartphone. Of th

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58340
A company assembles two kinds of phones: feature and smartphone. Of th  [#permalink]

### Show Tags

25 Sep 2018, 05:04
00:00

Difficulty:

25% (medium)

Question Stats:

100% (02:52) correct 0% (00:00) wrong based on 10 sessions

### HideShow timer Statistics

A company assembles two kinds of phones: feature and smartphone. Of the phones produced by the company last year, (2/5)th were feature phones and the rest were smartphones. If it takes (8/5)th as many hours to produce a smartphone as it does to produce a feature phone, then the number of hours it took to produce the smartphones last year was what fraction of the total number of hours it took to produce all the phones?

(A) 8/31

(B) 11/31

(C) 12/17

(D) 13/34

(E) 15/34

_________________
Manager
Joined: 07 Aug 2018
Posts: 108
Location: United States (MA)
GMAT 1: 560 Q39 V28
GMAT 2: 670 Q48 V34
Re: A company assembles two kinds of phones: feature and smartphone. Of th  [#permalink]

### Show Tags

27 Sep 2018, 07:59
$$\frac{2}{5}$$$$F$$ and $$\frac{3}{5}$$$$S$$

It takes $$\frac{8}{5}$$ longer to produce S.

Lets say 100 phones were produced in total and it takes 1hour to produce a feature (F) phone.

Feature: $$\frac{2}{5}$$$$*100$$=$$40$$
Smartphone: $$\frac{3}{5}$$$$*100$$=$$60$$

Total Hours: $$40+$$$$\frac{8}{5}$$$$*60$$=$$40+96$$=$$136$$

$$\frac{96}{136}$$--> $$\frac{12}{17}$$

Hence, C
_________________
Re: A company assembles two kinds of phones: feature and smartphone. Of th   [#permalink] 27 Sep 2018, 07:59
Display posts from previous: Sort by