Question 1 :
The current population of a town is 10,000. If the population increases by 10% every year, then the population of the town after three years will be
Question 2 :
Mohan lends Rs $4,800$ to John for $\displaystyle 4\frac{1}{2}$ years and Rs $2,500$ to Shyam for $6$ years and receives a total sum of Rs $2,196$ as interest. Find the rate per cent per annum, it being the same in both the cases.
Question 3 :
Peter invested an amount of Rs. 12,000 at the rate of 10 % p.a. simple interest and. another amount at the rate of 20 % p.a. simple interest. The total interest earned at the end of one year on the total amount invested became 14 % p.a. Find the total amount invested.
Question 4 :
Simple interest on a certain sum amounts to Rs.8.25 in 2 years at 5%. Find the sum
Question 5 :
Find the rate percent if the compound interest on Rs. 15,625 for 3 years is Rs. 1,951
Question 6 :
A shop-keeper purchases $11$ knives in Rs. $10$ and sells them at the rate of $10$ knives for Rs.$11$. He earns a profit of
Question 7 :
If the SP. of $16$ books is equal to the C.P. of $17$ books, find the gain % earned by book sellers.
Question 8 :
Find the simple interest and total amount for the following:Rs. $2,600$ in $2$ years $3$ months at the rate of $1\%$ per month.
Question 9 :
Ram mixes $15$ kg of sugar purchased with the rate, off Rs. $8.00$ per kg with $25$ kg of sugar purchased at the rate of Rs. $10.00$ per kg. At what rate per kg should Ram sell the mixture to get a profit of $3$ per kg?<br/>
Question 10 :
The compound interest on Rs $30000$ at $7\%$ per annum is Rs. $4347$. The period (in years) is
Question 11 :
A shopkeeper buys $80$ articles for Rs $2,400$ and sells them for a profit of $33.33\%$. Selling price of an article is
Question 12 :
Mr. A owns a house worth Rs.$10,000$. He sells it to Mr.B at $10\%$ profit. Mr.B sells the house back to Mr.A at a $10\%$ loss. Then:
Question 13 :
A person invested 3 times as much money at 5% as he had invested at 2% per annum simple interest. Further he invested Rs. 6000 more at 3% than he had invested at 2%. If the total interest from the three investments after a year is Rs. 980, then the total amount he invested is:
Question 14 :
$m=\dfrac { \left( \dfrac { r }{ 1,200 } \right) { \left( 1+\dfrac { r }{ 1,200 } \right) }^{ N } }{ { \left( 1+\dfrac { r }{ 1,200 } \right) }^{ N }-1 } P$<br>The formula above gives the monthly payment $m$ needed to pay off a loan of $P$ dollars at $r$ percent annual interest over $N$ months. Which of the following gives $P$ in terms of $m$, $r$, and $N$?
Question 15 :
The compound interest on a sum for two years is Rs. $832$ and the simple interest on the same sum at the same rate for the same period is Rs. $800$. What is the rate of interest ?
Question 16 :
The monthly salary $S$ of a shop assistant is the sum of a fixed salary of $ $500$ plus $5$% of all monthly sales. What should the monthly sales be so that her monthly salary reaches $ $1500$
Question 17 :
Shashi makes a fixed deposit of $Rs. 50000$in aBank for$73$days.If the rate of interest be$6.5\%$perannum what amount does she get onmaturity of$FD$?
Question 19 :
Principal $= 2500$, rate $= 6$%, time$= 4$ years. Calculate the interest.
Question 20 :
Simple interest on a certain amount is $\displaystyle \frac{9}{16}$ of the principal. If the number representing the rate of interest in percent and time in year be equal, then time for which the principal lent out is 
Question 21 :
The population of a country increased by an average of $2$% per year from $2000$ to $2003$. If the population of this country was $2,000,000$ on December $31$, $2003$, then the population of this country on January $1$, $2000$, to the nearest thousand would have been
Question 22 :
 A survey of $1,067$ residents has been done to represent Florida city.It has been found  that $10$% of the  group does not like cheese, while the remaining $90$% does like cheese. . The survey is true with a $3$% margin of error $19$ times out of $20$. . The population of Florida city is $8.5$ million, find the best estimate of people who do not like cheese.<br/>
Question 23 :
A cricketer scored a total of $62$ runs in $96$ balls. He hits $3$ sixes, $8$ fours, $2$ twos and $8$ singles, What highest percentage of the runs that came in :
Question 24 :
At Lincoln High School, approximately $7$ percent of enrolled juniors and $5$ percent of enrolled seniors were inducted into the National Honor Society last year. If there were $562$ juniors and $602$ seniors enrolled at Lincoln High School last year, which of the following is closest to the total number of juniors and seniors at Lincoln High School last year who were inducted into the National Honor Society?
Question 25 :
<b></b>Below given is the distribution of 2400 residents in terms of percentage.<table class="wysiwyg-table"><tbody><tr><td></td><td>Adult Male</td><td>Adult Female</td><td>Child</td></tr><tr><td>$\%$ Living in Uptown</td><td>$9$</td><td>$8$</td><td>$6$</td></tr><tr><td>$\%$ Living in Midtown</td><td>$22$</td><td>$20$</td><td>$15$</td></tr><tr><td>$\%$ Living in Downtown</td><td>$21$</td><td>$22$</td><td>$12$</td></tr><tr><td>$\%$ Living in Suburbs</td><td>$48$</td><td>$50$</td><td>$67$</td></tr></tbody></table>Centre Hill plans to annexe the area around a nearby lake. This new art of Centre Hill will be called, appropriately, The Annex. The Annex will add to the current population of Centre Hill. The perfect of adult males living in Uptown will decrease to $6\%$ after incorporating The Annex into Centre Hill. If the information from Part $1$ holds true for the original four districts of the city of centre Hill, then how many adults makes live in The Annex?