WB FOOD SUPPLY SI PRACTICE SET ARITHMETIC - PART 2

WB Food Supply Sub Inspector Exam

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Arithmetic Syllabus

• Decimals,
• Number Series,
• Divisibility,
• HCF & LCM,
• Average,
• Partnership,
• Percentage
• Profit & Loss
• Simple & Compound Interest
• Time Speed & Distance/ Time & Work,
• Simple Geometry,
• Simplification,
• Ratio.

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1) If an angle is its own complementary angle, then its measure is

a) 80⁰

b)45⁰

c) 60⁰

d) 90⁰

45 View Answer

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2) cos 0⁰ is equal to

a) 0

b) 1

c) Not defined

d) None of these

1 View Answer

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3) Volumes of two cubes are in the ratio 8:27. Ratio of their surface area is

a) 2 : 3
b) 3 : 2

c) 4 : 9

d) 9 : 4

4 : 9 View Answer

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4) What is the largest number of 4 digits which divided by 6,9,12,15 or 18 leaves 1 as reminder in each case?

a) 9901

b) 9899

c) 1081

d) 9673

9901 View Answer

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5) 8³ x 8² x8^-5 is equal to

a) 0

b) 1

c) 2

d) None of the above

1 View Answer

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6) How many 3 digit numbers, in all, are divisible by 6?

a) 140

b) 150

c) 160

d) 170

150 View Answer

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7) A sum is invested at compound interest payable annually. The interest including principal in two successive years was Rs 225 and Rs 236.25 respectively. The rate of interest was

a) 4.5%

b) 5%

c) 8%

d) 6.25%

5% View Answer

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8) A certain sum amount to Rs 5832 in 2 yr at 8% per annum compound interest, the sum is

a) Rs 5000

b) Rs 5200

c) Rs 5280

d) Rs 5400

Rs 5000 View Answer

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9) If a + b=5,a²+ b² = 13, the value od a – b ( where a>b) is

a) 1

b) – 2

c) 2

d) – 1

1 View Answer

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10) If (3x – y) : (x + 5Y) = 5:7, then the value of ( x+ y) : ( x – y) is

a) 2 : 3

b) 3 : 2

c) 3 : 1

d) 1 : 3

3 : 1 View Answer

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11) If 1³ + 2³ + 3³ ….. + 10³ = 3025, then 4 + 32 + 108 + …… + 4000 is equal to

a) 12000

b) 12100

c) 122000

d) 12400

12100 View Answer

Solution: –

4 + 32 + 107 …. + 4000 = 4 (1 + 8 + 27 + ….. 1000)

= 4 (1³ + 2³ + 3³ ….. + 10³ )= 4 x 3025 = 12100 (Answer)

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12) The lengths of the diagonals of a rhombus are 24 cm and 18 cm, respectively. The lengths of each side of the rhombus is

a) 12 cm

b) 9 cm

c) 15 cm

d) 8 cm

15 cm View Answer

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13) The area ( in sq cm) of the largest circle that can drawn inside a square of side 28 cm, is

a) 17248

b) 784

c) 8624

d) 616

616 View Answer

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14) The digit in unit’s place of the product

49237 x 3995 x 738 x83 x 9 is

a)0

b) 7

c) 5

d) 6

0 View Answer

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15) The number, whose square is equal to the difference of the squares of the numbers 68 and 32, is

a) 36

b) 48

c) 60

d) 64

60 View Answer

16) If x earn 25% more than y. What per cent less does y earn than x?

a) 16%

b) 10%

c) 20%

d) 25%

20% View Answer

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17)If A and B are in the ratio 3 : 4 and B and C are in the ratio 12 : 13, then A and C will be in the ratio

a) 3 : 13

b) 9 : 13

c) 36 : 13

d) 13 : 9

9 : 13 View Answer

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18) (0.04) ^–(1.5) is equal to

a) 25

b) 125

c) 60

d) 5

125 View Answer

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19) For a certain article, if discount is 25% the profit is 25%. If the discount is 10%, then the Profit is

a) 50%

b) 40%

c) 30%

d) 33 %

50% View Answer>

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20) {(49)¹⁵ – 1} is exactly divisible by

a) 8

b) 14

c)50

d) 51

8 View Answer

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21)If CP of 5 mangoes is equal to SP of 4 mangoes, then what will be gain percentage?

a) 20

b) 16

c) 25

d) 10

25 View Answer

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22) What is the rate of interest, when the PW of Rs 1245 due 15 months hence is Rs 1200 ?

a) 3%

b) 2%

c) 4%

d) 5%

3% View Answer

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23) If x² + y² – 4x – 4y + 8= 0, then the value of x – y is

a) 4

b) – 4

c) 0

d) 8

0 View Answer

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24) If a* b= 2a – 3b + ab, then 3* 5* + 5 * 3 is equal to

a) 22

b) 24

c) 26

d) 28

22 View Answer

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25) The discount series 10%, 20%, 40% is equivalent to a single discount of

a) 50%

b) 56.8%

c) 60%

d) 62.28%

56.8% View Answer

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26) The mean of five numbers is 18. If one n umber is excluded, their mean is 16. The excluded number is

a) 25

b) 26

c) 27

d) 30

26 View Answer

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27) 8 men can dig a pit in 20 days. If a man works half as much again as a boy, then 4 men and 9 boys can dig a similar pit in

a) 10 days

b) 12 days

c) 15 days

d) 16 days

16 days View Answer

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28) Find the largest common divisor of 102 and 1170

a) 10

b) 7

c) 6

d) 8

6 View Answer

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29) The smallest 3-digit prime number is

a) 103

b) 107

c) 109

d) None of these

None of these View Answer

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30) sin² 20^o + sin² 70^o – tan² 45^o =?

a)0

b) 2

c) 1

d) ½

0 View Answer

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31) The number of times 2 is used while writing the numbers from 1 to 100 is

a) 19

b) 18

c) 21

d) 20

20 View Answer

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32) 3x + 2y = 12 and xy= 6, then the value of 9x² + 4y² is

a) 76

b) 80

c) 72

d) 74

72 View Answer

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33) Volumes of two cubes are in the ratio 8 : 27. Ratio of their surface area is

a) 2 : 3

b) 3 : 2

c) 4 : 9

d) 9 : 4

4 : 9 View Answer

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34) The largest sphere is curved out from a cube of side 21 cm. The volume of remaining part is

a) 4770 cm³

b) 4410 cm³

c) 4370 cm³

d) None of these

4410 cm View Answer

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35) If a + b= 8, a – b = 4, then a² + b² is equal to

a) 20

b) 40

c) 10

d) 30

40 View Answer

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36) If 7n + 9 >100 and n is an integer, then smallest possible value of n is
a) 13

b) 12

c) 14

d) 15

14 View Answer

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37) The sum of a natural number and its square equal the product of the first three prime numbers. The number is

a) 2

b) 3

c) 5

d) 6

5 View Answer

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38) If ( x+ 7954 x 7956) be a square number ,Then the value of x is

a) 1

b) 16

c) 9

d) 4

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1 View Answer

39) HCF of x² – y² and x³ – y³ is

a) x- y

b) x3 – y3

c) (x² – y²)

d) (x + y)( x²+xy +y²)

x - y View Answer

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40) The cost price of 18 articles is equal to the selling price of 15 articles. The gain is

a) 25%

b) 20%

c) 18%

d) 15%

20% View Answer

41) ram has Rs. 6 more than Mohan and Rs. 9 more than Sohan. All the three have Rs. 33 in all. Ram has a share of

a) Rs. 10

b) Rs. 16

c) Rs. 7

d) Rs. 13

Rs. 16 View Answer

42) A river 3 m deep and 40 m wide is flowing at the rate of 2 km/h. How much water (in liters) will fall into the sea in a munite ?

a) 400000

b) 4000000

c) 40000

d) 4000

4000000 View Answer

43) The simple interest on a sum for 5 yr is one-fourth of the sum. The rate of interest per annum is

a) 5%

b) 6%

c) 4%

d) 8%

5% View Answerv>

44) What is the volume in cubic cm of a pyramid whose area of the base is 25 sq cm and height 9 cm?

a) 105

b) 90

c) 60

d) 75

75 View Answer>

45) A man can row 6 km/h in still water. If the speed of the current is 2km/h, it takes 3 h more in upstream than in the downstream for the same distance. The distance is

a) 30 km

b) 24 km

c) 20 km

d) 32 km

24 km View Answer

46) How many meters of carpet 63 cm wide will be required to cover the floor of a room 14 m by 9 m ?

a) 200 m

b) 210 m

c) 220 m

d) 185 m

200 m View Answer

47) If the cost price of 50 oranges is equal to the selling price of 40 oranges, then the profit per cent is

a) 5

b) 10

c) 20

d) 25

25 View Answer

48) The distance between two parallel chords of length 8 cm each in a circle of diameter 10 cm is

a) 6 cm

b) 7 cm

c) 8 cm

d) 5.5 cm

6 cm View Answer

49) If an exterior angle of a cyclic quadrilateral be 500, then the interior opposite angle angle is

a) 130⁰

b) 40⁰

c) 50⁰

d) 90⁰

50 View Answer

50) The HCF of two numbers is 8. Which one of the following can never be their LCM?

a) 24

b) 48

c) 56

d) 60

60 View Answer

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