Question 1 :
A fruit seller bought some oranges at 4 for Rs. 3 and an equal number at 5 for Rs. 3. He mixed the two lots and sold these at 90 paise each. Find the gain or loss per cent.<br>C.P. of 1 orange of 1st kind = $Rs. \displaystyle \frac{3}{4}$<br>= Rs. 0.75<br>C.P. of 1 orange of 2nd kind =$Rs. \displaystyle \frac{3}{5}$<br>= Rs. 0.60<br>On mixing, C.P. of 2 oranges = Rs. 0.75 + Rs 0.60 = Rs 1.35 and S.p. of 2 oranges = $2 \times 90$ paise<br>= Rs. 1.80.

Question 3 :
Which of the following represents the descending order of weight of rings ?

Question 4 :
If the simple interest on a certain sum of money at 4% for 5 years is Rs. 800, find the sum.<br/>

Question 5 :
The Banker's discount on a sum of money for $18$ months is Rs$600$ and the true discount on the same sum for $3$ years is Rs$750$/-. The percentage is:

Question 6 :
Two numbers are in the ratio $3 : 5$. When each of these numbers is increased by $10$, their ratio becomes $5 : 7$. Find the greater number.<br/>

Question 7 :
Twenty years from now, Arun's age will be three timeshis present age. His present age is

Question 8 :
Simple interest on a certain sum amounts to Rs.8.25 in 2 years at 5%. Find the sum

Question 9 :
Find the simple interest rate applied to a principal over $10$ years if the total interest paid equals the borrowed principal.

Question 10 :
A honeybee colony that contains $50,000$ bees in late fallmay have only $10,000$ bees at the end of winter. What&#160;percent of the bees live through the winter season?

Question 11 :
A television set was bought for Rs. $10,500$ and sold at Rs. $9500$. Find the loss.<br/>

Question 12 :
The cost price of 25 articles is equal to the SP of 20 articles. Find gain%.

Question 13 :
$28\%$ of $25$ students are good in science. How many students are not good in science?

Question 14 :
Rajan borrowed Rs. 50,000 from Rakesh at simple interest. After 3 years, Rakesh got Rs. 3000 more than what he had given to Rajan. What was the rate of interest per annum?<br>

Question 15 :
By selling a certain number of goods for Rs.&#160;<span class="MathJax_Preview"><span class="MathJax"><span class="math"><span class="mrow"><span class="mn">5<span class="mo">,<span class="mn">500<span class="MJX_Assistive_MathML">5,500, a shopkeeper loses equal to one-tenth of their selling price. Find the loss&#160;percent.

Question 16 :
A retailer undertakes to supply $5000$ pieces of particular component at Rs. $100$ per piece. According to his estimates, even if $20$% fail to pass the quality tests, then he will make a profit of $33.33$%. However, as it turned out, $50$% of the components were rejected. What is the loss to the manufacturer?

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 18 :
A man buys goods at $25$% off the list price. He desires to mark the goods so that he can give a discount of $20$% on the marked price and still clear a profit of $25$% on the selling price. What percent of the list price must he mark the goods?

Question 19 :
Shruti lent some money to Pallavi at $5$% &#160;p.a.&#160;simple interest. Pallavi lent the whole amount&#160;to Niki on the same day at $\displaystyle 8\frac{1}{2}$% &#160;p.a. In this&#160;transaction after a year, Pallavi earned a profit of Rs. $350$. Find the sum of money lent by Shruti to&#160;Pallavi.

Question 20 :
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 :
The price of an item decreased by $20$% to $ $200$. then later the price decreased again from $ $200$ to $ $150$. What is the percent of decrease from the original to the final price of $ $150$

Question 23 :
By selling two articles, a man gains Rs.3,750 onthe whole, He sells one article for Rs. 69,000 at15% profit. Find the cost price of the other article,if it is sold at 20% loss.

Question 24 :
Trader professes to sell his goods at a loss of $8\%$ but uses a weight of $900$ grams in place of a $1kg$ weight. What is his real loss or gain percent?

Question 25 :
$A$ is $30$% more efficient than $B$. How much time will they, working together, take to complete a job which $A$ alone could have done in $23$ days?