Problems Related to Environment

Q.

The price of sugar is increased by $20\%$. As a result, a family decreases its consumption by $25\%$. The expenditure of the family on sugar will be decreased by

Q. Amit got 60 out of 80 in Hindi, 75 out of 100 in English, and 65 out of 70 in Arithmetic. Find his overall percentage.

1. 80%
2. 82%
3. 75%
4. 85%

Q.

The price of a bike is increased by 20% and its new price is ₹ 48000.. Find the original price.

1. ₹40000

2. ₹44000

3. ₹45000

4. ₹42000

Q.

A girl scored 66 out of 75 in English, 66 out of 90 in Mathematics and 80 out of 100 in Science. Find her overall percentage.

1. 75%

2. 80%

3. 65%

4. 85%

Q.

The distance between two places is 10 km. A person travels 4 km, which is $44\%$ of the entire journey.

1. True

2. False

Q.

The price of onion is $₹12$ per $kg$.Its price reduced by $20\%$.What will be the new price of the onion per $kg$$?$

Q.

A lunch interval of half an hour is$5\%$ of total office hours. Calculate the total office hours​.

Q.

A bag contains red and blue balls. If the total number of balls is 30 and 30% are red. Find the number of blue balls.

1. 21

2. 10

3. 9

4. 24

Q.

If 15 out of 20 tomatoes were used for making tomato ketchup, how much percentage went unused?

1. 20%

2. 10%

3. 25%

4. 15%

Q.

The price of all the televisions in a shop are to be increased by 25%. Calculate the new price of a television that originally cost ₹22000.

1. ₹ 27500

2. ₹ 26500

3. ₹ 28000

4. ₹ 25000

Q.

In an examination, the pass mark is $\frac{4}{9}$ of the total marks. If Rajnish scores 45% out of a total of 810, by how much does he exceed the pass mark?

1. 4.5

2. 3

3. 5

4. 10

Q.

40% of the rat population in Hamelin perished due to a famine. The remaining 60% were drawn out of the town by the Pied Piper of Hamelin. If there were 48000 rats in the town originally, how many rats died due to the famine?

1. 20200

2. 19200

3. 18600

4. 20000

Q.

State whether the given statement is true or false:

A 10% hike in petrol price between yesterday and today means that a man who paid ₹ 200 for some petrol yesterday, will pay ₹ 220 for the same amount of petrol today.

1. True

2. False

Q.

The distance between Kanpur and Lucknow is 80 kms. A person travels 36 kms. How much percentage of the entire journey he has to cover more ?

1. 40 %

2. 55%

3. 45%

4. 60%

Q.

If Samantha has scored 60% in first term exam, how much percentage marks does she need to score in 2nd term to make the average 70%?

1. 90%

2. 80%

3. 95%

4. 70%

Q. The prices of all the televisions in a shop are to be increased by 8%. Then the new price of a television that originally costs ₹ 9000 is

1. ₹ 9800
2. ₹ 9700
3. ₹ 9720

Q. If the student council sold 270 chocolates for 480.60 dollars at the music festival, is the cost per chocolate.

1. 1.20 dollars
2. 1.42 dollars
3. 2.0 dollars
4. 1.78 dollars

Q. There were red, yellow, and blue balls in a bag. Out of 280 balls, 50% were blue and 40% were red. Find the number of yellow balls.