# Finding a percentage of a whole number without a calculator: Basic Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to **Finding a percentage of a whole number without a calculator: Basic**. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using **Show Answer** button. You can use **Next Quiz** button to check new set of questions in the quiz.

### Answer : C

### Explanation

**Step 1:**

Rewriting 88 = 88.0

**Step 2:**

To find 10% we move the decimal one place to the left to get 8.8

**Step 3:**

So, 10% of 88.0 = 8.8

### Answer : B

### Explanation

**Step 1:**

Rewriting 60 = 60.0

**Step 2:**

We find 10%. We move the decimal one place to the left to get 6.0

**Step 3:**

To find 5% we take its half or divide it by 2.

So, 5% of 60.0 = $\frac{6.0}{2} = 3.0 = 3$

### Answer : A

### Explanation

**Step 1:**

25% = $\frac{25}{100} = \frac{1}{4}$

**Step 2:**

To get 25% of 180 we divide it by 4

25% of 180 = $\frac{180}{4} = 45$

**Step 3:**

So, 25% of 180 = 45

### Answer : D

### Explanation

**Step 1:**

50% = $\frac{50}{100} = \frac{1}{2}$

**Step 2:**

To get 50% of 240 we divide it by 2

50% of 240 = $\frac{240}{2} = 120$

**Step 3:**

So, 50% of 240 = 120

### Answer : A

### Explanation

**Step 1:**

Rewriting 270 = 270.0

**Step 2:**

We find 10%. We move the decimal one place to the left to get 27.0

**Step 3:**

To find 20% we multiply the result by 2.

So, 20% of 270 = 27 × 2 = 54

### Answer : D

### Explanation

**Step 1:**

Rewriting 96 = 96.0

**Step 2:**

To find 10% we move the decimal one place to the left to get 9.6

**Step 3:**

So, 10% of 96.0 = 9.6

### Answer : B

### Explanation

**Step 1:**

Rewriting 320 = 320.0

**Step 2:**

We find 10%. We move the decimal one place to the left to get 32.0

**Step 3:**

To find 30% we multiply the result by 3.

So, 30% of 320 = 32 × 3 = 96

### Answer : C

### Explanation

**Step 1:**

75% = $\frac{75}{100} = \frac{3}{4}$

**Step 2:**

To get 75% of 320 we multiply 160 by $\frac{3}{4}$

75% of 160 = $\frac{3}{4} \times 160 = 120$

**Step 3:**

So, 75% of 160 = 12

### Answer : A

### Explanation

**Step 1:**

Rewriting 220 = 220.0

**Step 2:**

We find 10%. We move the decimal one place to the left to get 22.0

**Step 3:**

To find 5% we take its half or divide it by 2.

So 5% of 220.0 = $\frac{22.0}{2} = 11.0 = 11$

**Step 4:**

To find 15% we add the 10% and 5% found

15% of 220 = 10% of 220 + 5% of 220

= 22 + 11 = 33

So, 15% of 220 = 33

### Answer : B

### Explanation

**Step 1:**

Rewriting 480 = 480.0

50% = $\frac{50}{100} = \frac{1}{2}$

**Step 2:**

To get 50% of 480 we divide it by 2

50% of 480 = $\frac{480}{2} = 240$

**Step 3:**

Now we find 10% of 480. We move the decimal one place to the left to get 48.0

**Step 4:**

60% of 480 = 50% of 480 + 10% of 480

= 240 + 48 = 288

So, 60% of 480 = 288