India’s No.1 Educational Platform For UPSC,PSC And All Competitive Exam

Download Our App

If the simple interest on Rs. 1 for 1 month is 1 paisa, then the rate percent per annum will be = ?

110%
28%
312%
46%

Answer:- 1

Explanation:-

Solution:

\begin{aligned} t = 1 month  = \frac{1}{12} year \\ SI  =  1 paisa  =  Rs . \frac{1}{100} \\ r % = \frac{SI \times 100}{P \times T} = \frac{1 \times 100 \times 12}{100 \times 1 \times 1} \\ r % = 12 % \end{aligned}

$\eqalign{ & {\text{t}} = {\text{1 month = }}\frac{1}{{12}}{\text{year}} \cr & {\text{SI = 1 paisa = Rs}}{\text{. }}\frac{1}{{100}} \cr & {\text{r}}\% = \frac{{{\text{SI}} \times {\text{100}}}}{{{\text{P}} \times {\text{T}}}} = \frac{{1 \times 100 \times 12}}{{100 \times 1 \times 1}} \cr & {\text{r}}\% = 12\% \cr}$

Workspace Report

Post your Comments

", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

\begin{aligned} t = 1 month  = \frac{1}{12} year \\ SI  =  1 paisa  =  Rs . \frac{1}{100} \\ r % = \frac{SI \times 100}{P \times T} = \frac{1 \times 100 \times 12}{100 \times 1 \times 1} \\ r % = 12 % \end{aligned}

$\eqalign{ & {\text{t}} = {\text{1 month = }}\frac{1}{{12}}{\text{year}} \cr & {\text{SI = 1 paisa = Rs}}{\text{. }}\frac{1}{{100}} \cr & {\text{r}}\% = \frac{{{\text{SI}} \times {\text{100}}}}{{{\text{P}} \times {\text{T}}}} = \frac{{1 \times 100 \times 12}}{{100 \times 1 \times 1}} \cr & {\text{r}}\% = 12\% \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

Test

Classes

E-Book