Kerala PSC Maths Questions and Answers 1

This page contains Kerala PSC Maths Questions and Answers 1 for psc exam preparations in Malayalam and English.

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1. Complete the series. 15,20,18,23, ____ ,26

Answer: 21

2. 4, 9, 25, 49, 121, 169, ................

Answer: 289

3. 8 പുരുഷന്മാർക്കോ 12 സ്ത്രീകൾക്കോ ഒരു ജോലി തീർക്കാൻ 25 ദിവസം വേണം. അതെ ജോലി തീർക്കാൻ 6 പുരുഷൻമാർക്കും 11 സ്ത്രീകൾക്കും കൂടി എത്ര ദിവസം വേണം ?

Answer: 15 days.

4. ഒരു പെട്ടിയിൽ 70% കറുത്ത പന്ത്കളും ബാക്കി വെളുത്ത പന്ത്കളും ഉണ്ട്. കറുത്ത പന്ത്കൾ വെളുത്ത പന്ത്കളെക്കാൾ 20 എണ്ണം കൂടുതൽ ആണ് എങ്കിൽ ആകെ പന്ത്കൾ എത്ര ?

Answer: 50.

5. 2+16÷2×4-5 എത്ര?

Answer: 29

6. Value of 1 + 2 + 3 +..............+ 20 is :

Answer: 210

7. The price of sugar is increased by 25%. How much per cent should a man decrease his consumption so that there is no increase in his expenditure ?

Answer: 20%

8. Interest for money in the S.B.A/c is calculated today on a :

Answer: Daily basis

9. .The investments of three persons A,B and C in a business are in the ratio 2:3:4.If the total investment is Rs.2,70,000,the share of B is:

Answer: 90000

10. The savings of an employee is 1/5th of his salary.when he changes his savings to 1/6th of the salary,there is a difference of Rs.200.His salary is:

Answer: .6,000

11. What is the lowest common multiple of 12, 36 and 20?

Answer: 180

12. In an examination, a student’s average marks were 63. If he had obtained 20 more marks for his Geography and 2 more marks for his history, his average would have been 65. How many subjects were there in the examination?

Answer: 11

13. Speed of a man is 10 km/h in still water. If the rate of current is 3 km/h, then the effective speed of the man upstream is:

Answer: 7 km/h

14. 1+ 2+ 3 + 4 + …………+50=?

Answer: 1275

15. ഒരു കോഡ്‌ ഭാഷയിൽ 'ABILITY' എന്നത്‌ '1291292025' എന്ന് കോഡ്‌ ചെയ്യുന്നു. ഇതിൽ 'CAPABLE'എന്നത്‌ എങ്ങനെ കോഡ്‌ ചെയ്യാം ?

Answer: 311612125

16. Raj can do a piece of work in 5 hours. Hari and Siva can do it in 3 hours. Raj and Siva can do it in 4 hours. How long will Hari take to do it ?

Answer: 4 hours

17. Fill in the blank from the choices given below :PINDY : QMEX : : JRSF : ?

Answer: KQTE

18. Area of a rectangle of 5 metre length and 4 metre breadth is

Answer: 20m^2

19. The angle between the minute hand and the hour hand of a clock when the time is 4.20, is:

Answer: 10° Angle traced by hour hand in 13/3 hrs =(360/12 x 13/3)°= 130°. Required angle = (130 - 120)° = 10°.

20. Replace the question mark (?) in the following series? 5, 12, 38, 135, ?, 2875

Answer: 568

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