ISSB - Pak Navy Officer Selection: Mathematics MCQs with Answers

Question 1

If 30% of a number is 45, what is the number?

Accepted Answer

150

Answer

120

Answer

135

Answer

165

Question 2

A train 150 m long passes a pole in 15 seconds. Its speed in km/h is:

Accepted Answer

36

Answer

40

Answer

45

Answer

54

Question 3

If x² − 9 = 0, then x equals:

Accepted Answer

3 or −3

Answer

3 only

Answer

−3 only

Answer

9

Question 4

A shopkeeper marks goods 25% above cost and gives 10% discount. Profit % is:

Accepted Answer

12.5%

Answer

15%

Answer

17.5%

Answer

22.5%

Question 5

A shop marks an item up 25% then offers 20% discount on marked price. Net result?

Accepted Answer

0% (no profit, no loss)

Answer

5% profit

Answer

5% loss

Answer

10% profit

Question 6

40 km route: first 20 km at 10 km/h, next 20 km at 20 km/h. Average speed?

Accepted Answer

13.3 km/h

Answer

15 km/h

Answer

12 km/h

Answer

16 km/h

Question 7

A number increased by 20% becomes 240. Original number?

Accepted Answer

200

Answer

192

Answer

220

Answer

288

Question 8

Simple interest on Rs 8000 at 5% for 4 years?

Accepted Answer

Rs 1600

Answer

Rs 1200

Answer

Rs 2000

Answer

Rs 2400

Question 9

If x/3 = 4, then 2x = ?

Accepted Answer

24

Answer

12

Answer

18

Answer

36

Question 10

If 3x + 7 = 22, value of 2x − 5?

Accepted Answer

5

Answer

7

Answer

10

Answer

15

Question 11

Next term: 3, 9, 27, 81, ?

Accepted Answer

243

Answer

162

Answer

324

Answer

729

Question 12

If 40% of a number is 64, the number is:

Accepted Answer

160

Answer

256

Answer

96

Answer

128

Question 13

A train 150 m long crosses a pole in 15 s. Speed in km/h?

Accepted Answer

36

Answer

54

Answer

72

Answer

90

Question 14

Perimeter of square with side 12 cm?

Accepted Answer

48 cm

Answer

24 cm

Answer

36 cm

Answer

144 cm

Question 15

Ratio 2:5. If smaller part is 14, larger part is:

Accepted Answer

35

Answer

28

Answer

40

Answer

70