Quantitative Analysis and numerical Part 3, Free Civil Service Examination Reviewer

1. Write 3.4% as a fraction.

1) 3.4/100

2) 3.4/100

3) 34/100

4) .34/1000

5) 34/100

Ans: 1

2. Write ¾ % as a decimal.

1) 75

2) 075

3) .0075

4) .00075

5) 7.5

Ans: 3

3. The number missing in the series 6, 12, 20, 30, ?, 56, 72 is ?

1) 38

2) 42

3) 44

4) 48

5) 52

Ans: 2

( 6 + 6 = 12 + 8 = 20 + 10 = 30 + 12 = 42 + 14 = 56 + 16 = 72 )

4. If ;he following numbers are arranged in order from smallest to the largest, what will be the correct order?

a) 9/13

b) 13/9

c) 70%

d) 1/70

1) bacd

2) cbad

3) cdab

4) bdca

5) acdb

Ans: 5

a. 9/13=69; c. 70%=70; d. 1/70=1.42; b. 13/9=1.44

5. 3 is 6% of a certain number. What is the number?

1) 53

2) 50

3) 48

4) 18

5) 24

Ans: 2

6%X = 3;

__.06X__=

__3__

.06 .06

X = 50

6. What is the average of 0.6, 6.6, 0.4, and 2.4?

1

10

2 1/5

2

12

Ans: 3

0.6 + 6.6 + 0.4 + 2.4 = 10/4 = 2.5 or 2 ½

7. what is the sum of ̀√12 + √27?

√29

5 √3

3 √5

13√3

7√3

Ans: 2

√12 = √4 √3 √27 = √9 √3

= 2 √3 = 3 √3

2√3 + 3√3

= 5 √3

8. Find 65% of 75.

4.87

488

48.75

487.50

48.80

Ans: 3

75 x 65/100 = 4875/100 = 48.75

9. P25.00 is 20% of what?

P1,250

P125.00

P128.50

P120.00

P500

Ans: 2

__20X__=

__25__

.20 .20

= 125

10. 12 is 125% of what number?

9.6

8

9

10

8.6

Ans: 1

125% = 1 ¼ or 5/4

=

__5X__= 12

__5X__=

__12(4)__X =

__48__

4 5 5 5

X = 9.6

11. What percent of 16 is 40?

2.5%

2500%

¼

250%

25%

Ans: 4

__16X__=

__40__

16 16

X= 2.5 x 100 = 250%

12. 1 ¼ subtracted from its reciprocal is?

-9/20

45

2.25

9/20

-1/5

Ans: 1

1 ¼ = 5/4 4/5 – 5/4 =

__16 – 25__

20 = -9/20

(20/5X4=16; 20/4x5=25)

13. What is the ratio of ¼ to 3/5?

1:30

3:20

5:12

3:4

5:4

Ans: 3

¼ : 3/5 = ¼ / 5/3 = 5/12 or 5:12 LCD = 12

14. what is the difference between √150 and √54?

3√6

16√6

√96

6√2

2√6

Ans: 5

√150 = √6 √25=5√6 ; √54 = √6 √9 =3√6

= 5√6-3√6=2√6

15. One tenth is what part of three-fourths?

3/40

1/8

2/15

15/2

40/3

Ans: 3

1/10 = X ( ¾ ) = 1/10 = 3X/4 = 30X/30 = 4/30 ; X = 2/15

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