Following are the set of 15 multiple choice questions from the subject Arithmetic and Mental Ability. The purpose of this section is just to support the candidates who prepare for Kerala PSC and other competitive exams. You can always refer this website from your mobile phone on the go or from your home PC.
ARITHMETIC AND MENTAL ABILITY
PRACTICE QUESTIONS [SET-3]
[An objective type multiple choice questions for competitive exams like Kerala PSC, UPSC, SSC, IBPS, RRB, Postal etc.]
1. A water tank contains 5% salt by weight. ‘x’ litres of fresh water is added to 40 litres of tank water, so that the solution contains 2% salt. The value of ‘x’ is:
[a] 60
[b] 50
[c] 40
[d] 80

2. Find the one which does not belong to the group:
[a] Elevator
[b] Typewriter
[c] Cooker
[d] Writer

3. Find the sum of first 50 natural numbers:
[a] 5050
[b] 5005
[c] 9900
[d] 9050

4. CEBD: GIFH:: OQNP:?
[a] SRUT
[b] RUST
[c] SURT
[d] USRT

5. The sum of a two digit number is 8. The number obtained by interchanging two digits exceeds the given number by 18. Find the number:
[a] 26
[b] 80
[c] 17
[d] 53

6. Which is the odd one?
[a] PRT
[b] QOM
[c] CEG
[d] IKM

7. The number of boys in a class is three times the number of girls. Which one of the following numbers cannot represent the total number of children in the class?
[a] 48
[b] 44
[c] 42
[d] 40

8. If ARID=32 then DEAR=?
[a] 22
[b] 24
[c] 26
[d] 28

9. A certain number of students decided to conduct a picnic and planned to spend Rs 96 on eatables. Four of them however did not turn up. As a consequence the remaining had to contribute Rs.4 each extra. The number of students who attended the picnic:
[a] 12
[b] 16
[c] 24
[d] 8

10. Find out the odd one:
[a] Toxic
[b] Venomous
[c] Poisonous
[d] Harmless

11. The least number added to make 7399 a perfect square is:
[a] 170
[b] 151
[c] 27
[d] 0

12. Pride: Lion :: Pack: ?
[a] Elephant
[b] Wolves
[c] Sheep
[d] None of these

13. A metal block having sides 10 cm, 15cm, 30cm has cut into equal cubes. If the block is exhausted completely what will be the least possible number of cubes?
[a] 12
[b] 24
[c] 30
[d] 36

14. In certain code CENTRAL is written as LARTNEC. How SEMINAR is written in that code?
[a] RANIMES
[b] NARISEM
[c] MESIRAN
[d] None of these

15.One fourth percent of 180:
[a] 4.5
[b] 0.045
[c] 0.45
[d] 45