Aptitude - Simple Interest - Discussion

I= prn/100,

So r=I * 100/pn, atq r=n=x (let),r=36/x as r=n x2=36, x=6.

@Tejas.

According to question Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest.

It means rate of interest and time duration both are equal.

Why should we take R for time why should not T or Something other?

You are right Ppp.
We can also take x.
according to the question R=T.we can take R=T=x
R= S.I*100/P*T
x=432*100/1200*x
x to the power square =36; x= 6

As many years as the rate of interest so we taken t=r

According to ques we can also take x, y, z it is not a matter.

But Why we took R two times in this Solution..

We can Take Like R=Rate of Interest and T=Time

the Formula is SI=PRT/100

In this Formula if We take 1 year then the ans will be 36 instead of 6.

Plz Give me Proper Solution for my biggest Confusion..As Soon As

Reena took a loan of Rs. 1200 with simple interest for as many years as the rate of interest.

Please solve the above sentence.

Actually, I am unable to understand what the question is, can anyone please explain me.

Hai friends
Actually reena took sum of Rs.1200 ie P=1200 and paid simple interest of Rs.432
We are asked to find the rate ie R
It is given that, simple interest for as many years as the rate of interest. this line mean that T=R.
Or
you can asuume R & T to some other variable also ie R=T=x

formulato be used is SI=PRT/100
432=1200*R*R/100 (Here i have used T=R)
43200=1200 R square
Rsquare=43200/1200
Rsquare=36
R=6
Hope understand... Goood night