**If 20% of 40% of a = 25% of a% of b, then what is b?**

1. 8/5

2. 16/25

3. 8/25

4. None

**Ans: 3**

**Solution:**

1/5 X 2/5 X a = ¼ X a X b => b = 8/25

**If 20% of 40% of a = 25% of a% of b, then what is b?**

1. 8/5

2. 16/25

3. 8/25

4. None

**Ans: 3**

**Solution:**

1/5 X 2/5 X a = ¼ X a X b => b = 8/25

**By what % is 200 more than 50?**

1 100

2. 200

3. 300

4. None

**Ans:** 3

**Solution:**

% difference = (200-50)/50 X 100 = 300 %

**In an election between two candidates, A and B, A secured 56% of the votes and won by 48000 votes. Find the total number of votes polled if 20% of the votes were declared invalid.**

1. 500000

2. 400000

3. 600000

4. None

Ans: 1

Sol:

A got 56% => B got 44%

Difference = 12% = 48000

So, 100% = 400000. These are valid votes.

But valid votes are only 80% of total votes.

So, 80% of total votes = 400000 => total votes = 500000

**If the length of a rectangle is increased by 33.33%, by what percentage should the breadth be reduced to make the area same?**

1. 20%

2. 33.33%

3. 25%

4. None

**Ans:** 1

**Sol:**

It is equivalent to 1.25 decreased to 1. So 20% decrease.

**The price of petrol is increased by 25%. By what percent the consumption be reduced to make the expenditure remain the same?**

1. 25%

2. 33.33%

3. 20%

4. None

**Ans: **2

**Sol:
**

It is equivalent to 1.25 decreased to 1.

% decrease = (1.25-1)/1.25 X 100 = 20%

**Three candidates contested an election and received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate get?****A**. 57% **B**. 60% **C**. 65% **D**. 90%

**Correct Answers is** : Option A

**Solution :**

Total number of votes polled = (1136 + 7636 + 11628) = 20400.

== Required percentage = ( 11628/20400 * 100 ) % = 57%.

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