# Kerala PSC GK | Practice/Model Maths Questions - 7

1. The average age of husband and his wife was 23 years at the time of their marriage. After 5 years they have a one year old child. The average age of the family now:

[a] 19 years

[b] 23 years

[c] 28.5 years

[d] 29.3 years

2. What is 90% of 90% of 100?

[a] 63

[b] 72

[c] 81

[d] 90

3. 10% of x is 25% of y then x:y is:

[a] 5:2

[b] 2:5

[c] 1:2

[d] 2:1

4. If 45% of students in a school are boys and number of girls is 1100. Find out the number of boys

[a] 900

[b] 1500

[c] 1350

[d] 2000

5. 15% of 40 is greater than 25% of a number by 2, the number is

[a] 13

[b] 14

[c] 15

[d] 16

6. If an examination 86% of the candidates passed and 224 failed. How many candidate appeared for the exam?

[a] 800

[b] 1540

[c] 1600

[d] 3136

7. In an election between two candidates the candidate who secure 30% votes is defeated by 4360 votes. Find the number of votes secured by winning candidate.

[a] 7490

[b] 7630

[c] 7080

[d] 7070

8. If the radius of a circle is increased by 50% the perimeter of the circle will be increased by

[a] 20%

[b] 30%

[c] 40%

[d] 50%

9. A man spends 89% of his monthly income. If he saves Rs. 2244 per month. What is his monthly income

[a] 20400

[b] 22440

[c] 24000

[d] 18156

10. A student has to secure 35% marks to pass the exam. If he get 100 marks and fails by 40 marks. The maximum marks.

[a] 300

[b] 250

[c] 400

[d] 350

Kerala PSC GK | Practice/Model Maths Questions - 7
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