This is the Multiples Choice Questions Part 3 of Numerical Ability. In preparation for the Civil Service Exam, practice, and familiarize every question we have, it might be included in the actual examination. Good luck.
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Numerical Ability Part 3
1. Radicals: √0.000025
a. 0.5
b. 0.05
c. 0.005
d. 0.00005
Answer: c
2. Number Series: 1/12, 1/6, 1/4, 1/3, _____
a. 1
b. 1/3
c. 5/12
d. ½
e. None of the above
Answer: c
3. A chemist has 400 milliliters of a solution of 20% alcohol on hand, and he wants to mix it with enough pure alcohol to turn it into a 30% alcohol solution. How much pure alcohol will this require?
a. 30
b. 40
c. 50
d. 60
e. 57
Answer: e
4. What is the percentage decrease from 80 to 60?
a.) 33.33%
b.) 25%
c.) 20%
d.) 75%
e.) None of the above
Answer: b
5. What is the percentage increase from 60 to 80?
a.) 33.33%
b.) 25%
c.) 20%
d.) 75%
e.) None of the above
Answer: a
6. A businessman sells 60% English books and still has 28 English books. Originally, he had:
a.) 47
b.) 39
c.) 60
d.) 70
e.) None of the above
Answer: d
7. Twelve and one half percent of 200 is what number?
a.) 112
b.) 12
c.) 50
d.) 25
e.) None of the above
Answer: d
8. If the price of a book is first decreased by 25% and then increased by 20%, then the net change in the price will be :
a.) 10%
b.) 20%
c.) 30%
d.) 40%
e.) None of the above
Answer: a
9. In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is:
a. 20 L
b. 30 L
c. 40 L
d. 60 L
e. none of the above
Answer: d
180.) Participants in a certain conference from Luzon, Visayas, and Mindanao are in the ratio of 4:3:2. If there are 120 participants from Luzon, how many participants are there in all?
a. 270
b. 150
c. 240
d. 420
e. None of the above
Answer: a
11. The sum of 63, 97, 642 and 22 is ______.
a. 871
b. 860
c. 824
d. 842
Answer: a
12. Which of the following is the product of 2, 2, 3 and 3?
a. 36
b. 24
c. 60
d. 48
Answer: a
13. What number do you get when you divide 1170 by 78?
a. 20
b. 17
c. 18
d. 15
Answer: d
14. The difference of 25657 and 12980 is _____.
a. 12677
b. 11734
c. 12776
d. 12767
Answer: a
15. Subtract 92 from the sum of 128, 311 and 722.
a. 1077
b. 1067
c. 1063
d. 1072
Answer: b
16. Divide the product of 97 and 18 by 6.
a. 291
b. 302
c. 289
d. 278
Answer: a
17. Add the following numbers, 111.75, .03, 752.5 and 10.620.
a. 862.811
b. 873.900
c. 874.900
d. 875.910
Answer: c
18. Which of the following numbers is divisible by 15?
a. 301
b. 270
c. 218
d. 4629
Answer: b
19. What do you get when you multiply the sum of 6411, 7210, 8103 and 6012 by 6?
a. 152346
b. 167417
c. 172408
d. 166416
Answer: d
20. Multiply 7200 by .06. What do you get?
a. 432
b. 432.01
c. 432.06
d. 432.1
Answer: a
