Profit & loss question.
Photo below.

Question

saifoo.khan · Answer

attachment

saifoo.khan · Answer

I'm guessing it's B.

saifoo.khan · Answer

I was doing it this way.

let's say she was spending 100 before.
Then 20% increased. So price becomes 120.
But she intends to pay 5% more. Meaning 105. 

now what to do next?

anonymous · Answer

yea B is right...wait for explaination

saifoo.khan · Answer

Like this? :D$$\frac{120-105}{120} \times 100$$

anonymous · Answer

continued from what you did earlier
let's say she was spending 100 before.
Then 20% increased. So price becomes 120.
But she intends to pay 5% more. Meaning 105. 

if she has to pay 120 for 1 unit cng
then she'll pay 1 for 1/120 unit
and she'll pay 105 for (1/120)*105 unit cng or 0.875 unit cng
so she'll not get 1-.875=.125 units of cng...or in %      (1-.875)*100=12.5%

saifoo.khan · Answer

Wow! This working/explaination was just GREAT!

saifoo.khan · Answer

How about this one: https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash4/1011124_10201587850720874_687351010_n.jpg

anonymous · Answer

@saifoo.khan iftar nahi kia kya?=D

saifoo.khan · Answer

:D
Abhi kahan? Aik ghanta hai abhi tou. :/

anonymous · Answer

=) Oh accha

saifoo.khan · Answer

@SidK : Kahan say?

anonymous · Answer

India mumbai but now living in usa =)

saifoo.khan · Answer

Ah, nice. :D

saifoo.khan · Answer

@stgreen : please answer here: http://openstudy.com/study#/updates/51e15478e4b0d9a104dba19a

anonymous · Answer

ok

saifoo.khan · Answer

Thanks.