Finding Increase or Decrease Percentage in Situations

Q. A shopkeeper earns a profit of $Rs2$ by selling a pen and incurs a loss of $50paise$ per pencil and loss of $15paise$ per eraser while selling old stock. On a particular day, he earns a profit of $Rs10$. If he sold $10$ pens and number of pencils and erasers he sold are in the ratio $7:10$, then find the number of pencils and eraser he sold that day.

Q. 20 trucks can hold 150 metric tonnes. How much will 12 trucks hold ?

Q. Find the value of 50% of 100.

1. 29
2. 50
3. 100
4. 25

Q. By selling an article for Rs. 382.50 a man loses $15\%$. Cost price of the article is Rs ___ .

Q. If 20 is decreased by 50%, we get .

1. 12
2. 15
3. 10

Q. Three times a number increased by 7 is equal to 10 more than twice of itself, then the number is

एक संख्या के तीन गुना में 7 जोड़ने पर इसका मान इसके दोगुने से 10 अधिक के बराबर है, तब संख्या है

1. $\frac{17}{5}$
   
2. 3
   
3. $\frac{3}{5}$
   
4. 17
   

Q. A milk man mixed 60 L of water and 40 L of milk and made a solution of 100 L.
He took 30 L of this mixture and again added some water to make 100 L of the solution. What is the ratio of milk to water in the solution?

1. 7:19
2. 9:19
3. 7:18
4. 5:21

Q.

An accommodation in an apartment costs Rs. 42 lakh. After 6 months, there was a 10% price hike, the new cost is:

1. 42, 20, 000

2. 46, 20, 000

3. 44, 60, 000

4. 44, 20, 000

Q. Ram spends $40$% of his salary on food, $20$% on house rent, $10$% on entertainment and $10$% on conveyance. If his savings at the end of a month are Rs. $1500$, then his salary per month (in Rs) is:

Q.

The area required for 200 animals (x) is

1. 15 acres
2. 20 acres
3. 24 acres
4. 30 acres

Q. Find the value of 20% of 80.

1. 12
2. 19
3. 16
4. 24

Q. If 90% of $x$ is 315 km, then the value of $x$ will be _____.

1. $350km$
2. $325km$
3. $320km$
4. $340km$

Q. A man loses $13\%$ by selling a book at a certain price. If he had sold it for Rs. $9.75$ more he would have gained $26\%$. Find the cost price of the book ?

1. $25$
2. $30$
3. $39$
4. $42$

Q.

The number of visitors in a trekking arena on a public holiday was 600. On the next day, which was a working day, if there were only 240 visitors, then what was the percentage decrease in number of visitors on the working day?

Q. Out of an income of Rs. $15,000$, Ali spends Rs. $10,200$. What percentage of his income does he save?

Q.

An almirah is sold at ₹5225 after allowing a discount of 5%. Find its marked price.

1. ₹5000

2. ₹5500

3. ₹4500

4. ₹6000

Q. A reduction of 20% in the price of rice enables a person to buy 3.5 kg more for Rs. 77. Then the original price per kg is

1. Rs. 4.00
2. Rs. 5.00
3. Rs. 4.50
4. Rs. 5.50

Q. Find the ratio between one side of the triangle in the photograph to one side of the triangle in the actual drawing.

1. $1in:50ft$
2. $15in:1ft$
3. $1in:15ft$
4. $1in:75ft$

Q. If 600 is decreased by 40%, then we get ______.

Q. $A$ is three times more efficient worker than $B$ and is therefore able to complete a work in $60$ days less than $B$. What is the number of days that $A$ and $B$ together will take to complete the work?

1. $24.5$ days
2. $24$ days
3. $22.5$ days
4. $22$ days

Q. 40% of 800 =

1. 320
2. 360
3. 480
4. 560

Q. If the labour cost $20\%$ of the cost of production and raw material cost $10\%$ of the cost of production and the price on which article is sold is $20\%$ above the cost of production. If the price of labour is increased by $40\%$ and the price of raw material increased by $20\%$ and rest other expenditure of cost remain constant. The industry thus decide to increase the selling price by $10\%$. Find the new profit percent ?

Q. Decreases:
300 by 10%

Q. Last year the price per share of Stock X increased by k percent and the earnings per share of Stock X increased by m percent, where k is greater than m. By what percent did the ratio of price per share to earnings per share increase, in terms of k and m ?

1. $\frac{k}{m}$ %
2. $(k-m)$ %
3. $\frac{100(k-m)}{100+m}$ %
4. $\frac{100(k-m)}{100+k+m}$ %
5. $\frac{100(k-m)}{100+k}$ %

Q. What percentage of 3.6 km is 360 metres?

Q. If number of students in a class are more than 56, of which girls are 22, then the number of boys is___

1. > 36
2. > 38
3. > 34
4. > 32

Q. The number of visitors in a trekking arena on a public holiday was 600. On the next day, which was a working day, if there were only 240 visitors, then what was the percentage decrease in number of visitors on the working day?

Q. Some articles were bought at 6 articles for Rs. 5 and sold at 5 articles for Rs. $6.$ What is the gain percent?

Q. The cost price of an article is $₹1,200$ and selling price is $5/4$ times of its cost price. Find Profit or loss as percent.

Q. The price of an article increase by 20% and a man now get 10kg less, if he also reduce his consumption by 20%, then find how much kg of article he used to purchase in normal price