Jasontuyj2012 wrote:

If taxi fares were $1.00 for the first 1/5 mile and $0.20 for each 1/5 mile there after, then the taxi fare for a 3-mile ride was

a) $1.56

b) $2.40

c) $3.80

d) $4.20

e) $2.80

1dollar=1/5mile, so 5 dollars = 1 mile

then, 1/5 dollar=1/5 mile, so 1 dollar = 1mile

so 3miles/7dollars, approximately equal to $4.20

where am I wrong???

I wonder why did you write "3miles/7dollars" in your solution.

Anyway, the question says:

The taxi charges $1 for the FIRST \(\frac{1}{5}miles\). And any additional \(\frac{1}{5}mile\) is charged at a rate of $0.20.

How many \(\frac{1}{5} miles\) are there in 3 miles? 15, right?

1 mile has five \(\frac{1}{5} miles\) parts.

3 miles have fifteen \(\frac{1}{5} miles\) parts.

The first part is charged @ $1.00 per part.

Rest 14 parts are charged @ $0.20 per part.

Total Fare=1*$1.00+14*$0.2=$1.00+$2.8=$3.8

Ans: "C"

_________________

~fluke

GMAT Club Premium Membership - big benefits and savings