Percentage of a Number

Q.

What percent is:

(i) 16 hours of 2 days?

(ii) 40 paisa of ₹ 2?

(iii) 25 cm of 4 metres?

Q.

$45$% of $200$ is ___.

1. $100$
2. $90$
3. $125$
4. $110$

Q.

$x$ is defined as 30% of 30. If $y=4x+7$, find the value of y.

1. 124

2. 142

3. 134

4. 143

Q.

x is defined as 40% of 40.

If y=$x^2+5x+8$ , find the value of y.

1. 324

2. 350

3. 344

4. 374

Q.

Study the table below and answer the question that follows :

$\begin{array}{ccccc}\text{Beverages}& \text{\% of vitamin}& \text{\% of minerals}& \text{\% of micronutrients}& \text{Cost/250gm~(In)}\\ \text{Orange juice}& 20& 20& 40& 8\\ \text{Pineapple juice}& 15& 20& 10& 10\\ \text{Litchi juice}& 12& 18& 30& 8\end{array}$

Which of these is the cheapest:

i) 200 grams of Litchi juice + 200 grams of Pineapple juice

ii) 300 grams of Pineapple juice + 100 grams of Litchi juice

iii) 100 grams of Pineapple juice + 100 grams of Litchi juice + 100 grams of Orange juice

1. 100 grams of Pineapple juice + 100 grams of Litchi juice + 100 grams of Orange juice

2. 200 grams of Litchi juice + 200 grams of Pineapple juice

3. 300 grams of Pineapple juice + 100 grams of Orange juice

4. 300 grams of Pineapple juice + 100 grams of Litchi juice

Q.

In a certain examination 77% of students in a class passed in English and 34% failed in Mathematics. If 13% failed in both subjects and 784 passed in both the subjects. The total number of students in the class is : ___

Q.

What is the percentage marks scored by you if you get 37.5 out of 50 in your school exam?

1. 60 %

2. 80 %

3. 75 %

4. 67.5 %

Q.

80% of 200 multiplied by 60% of 300 gives :

1. 30800

2. 29000

3. 28000

4. 28800

Q.

Study the table below and answer the question that follows :

$\begin{array}{ccccc}\text{Beverages}& \text{\% of vitamin}& \text{\% of minerals}& \text{\% of micronutrients}& \text{Cost/250gm~(In)}\\ \text{Orange juice}& 20& 10& 40& 8\\ \text{Pineapple juice}& 15& 20& 10& 10\\ \text{Litchi juice}& 12& 18& 30& 8\end{array}$

Which of the following beverages contains the maximum amount of Vitamins :
i) Litchi juice worth ₹ 16

ii) Pineapple juice worth ₹ 15

iii) Orange juice worth ₹ 8

iv) All the three worth ₹ 12.5 (125 grams each)

1. Litchi juice worth ₹ 16

2. All the three worth ₹ 12.5 (125 grams each)

3. Pineapple juice worth ₹ 15

4. Orange juice worth ₹ 8

Q.

80% of 100 multiplied by 60% of 300 gives :

1. 18800

2. 28500

3. 14400

4. 2880