Mathematics — All MCQs

1905 questions available

Showing 1821–1840 of 1905

Q1821.Convert 200° F into Celsius (°C).

Medium
A 100°C
B 80°C
C 93.3°C
D 90°C
Practical Mathematics PPSC

Correct Answer: C

°C = (°F - 32) × 5/9 = (200 - 32) × 5/9 = 168 × 5/9 ≈ 93.3°C.

Q1822.A car travels 30km at a uniform speed of 40km/h and the next 30km at a uniform speed of 20km/h. Find its average speed.

Medium
A 28.7 km/h
B 26.7 km/h
C 26.5 km/h
D 25.4 km/h
Time, Work & Speed PPSC

Correct Answer: B

Total distance = 60km. Total time = 30/40 + 30/20 = 0.75 + 1.5 = 2.25 hours. Average speed = 60 / 2.25 = 26.67 km/h.

Q1823.Ali stands 10 meters from a tree. His eyes are 1.5 meters from his feet, and the distance from his eyes to the top of the tree is 15 meters. What is the height of the tree according to the source?

Medium
A 13.5 meters
B 16.5 meters
C 15 meters
D 10 meters
Geometry & Mensuration PPSC

Correct Answer: B

As per the site database logic: Total height = Eye-level height (1.5m) + Eye-to-top distance (15m) = 16.5 meters.

Q1824.Convert 1/5 into a percentage.

Medium
A 10%
B 15%
C 20%
D 25%
Percentage, Ratio & Average PPSC

Correct Answer: C

(1/5) × 100 = 20%.

Q1825.What is the result of 12 × (18/9)?

Medium
A 18
B 24
C 30
D 36
General MCQs PPSC

Correct Answer: B

12 × (18/9) = 12 × 2 = 24.

Q1826.Solve and convert: 445 mm − 198 mm + 250 mm = ?

Medium
A 497 mm = 49.7 cm
B 497 mm = 4.97 cm
C 497 mm = 4970 cm
D 497 mm = 4.07 cm
Practical Mathematics PPSC

Correct Answer: A

445 - 198 + 250 = 497 mm. Since 10 mm = 1 cm, 497 mm = 49.7 cm.

Q1827.Solve: 5x − {3x + [4x − 2x]}

Medium
A 7
B 8.67
C 9
D 0
Algebra PPSC

Correct Answer: D

5x - [3x + 2x] = 5x - 5x = 0.

Q1828.What is the value of x in the equation 3x − 2 = 24?

Medium
A 7
B 8
C 8.67
D 9
Algebra PPSC

Correct Answer: C

3x = 26 => x = 26/3 ≈ 8.67.

Q1829.1/6 of 2430 is equal to?

Medium
A 405
B 360
C 450
D 420
General MCQs PPSC

Correct Answer: A

2430 ÷ 6 = 405.

Q1830.Calculate in centimeters: 187 m − 95 m + 328 m = ?

Medium
A 42,000 cm
B 420,000 cm
C 4,200 cm
D 4,200,000 cm
Practical Mathematics PPSC

Correct Answer: A

187 - 95 + 328 = 420 m. 420 m × 100 cm/m = 42,000 cm.

Q1831.15 × 12 = ?

Medium
A 160
B 170
C 180
D 190
General MCQs PPSC

Correct Answer: C

15 × 12 = 180.

Q1832.Calculate: 17% of 51 is?

Medium
A 8.67
B 153
C 102
D 119
Percentage, Ratio & Average PPSC

Correct Answer: A

17% of 51 = 0.17 × 51 = 8.67.

Q1833.Solve: 0.00896 × 0.70

Medium
A 0.006272
B 0.06272
C 0.0006272
D 0.6272
Basic Arithmetic PPSC

Correct Answer: A

896 × 70 = 62720. Shifting the decimal 7 places left gives 0.006272.

Q1834.What is 250 mm + 350 mm in centimeters (cm)?

Medium
A 55 cm
B 60 cm
C 65 cm
D 70 cm
Practical Mathematics PPSC

Correct Answer: B

250 mm + 350 mm = 600 mm = 60 cm.

Q1835.What is the decimal form of 3/50?

Medium
A 0.04
B 0.05
C 0.06
D 0.08
Basic Arithmetic PPSC

Correct Answer: C

3 ÷ 50 = 0.06.

Q1836.What is the square of 79?

Medium
A 6,041
B 6,121
C 6,241
D 6,361
General MCQs PPSC

Correct Answer: C

79 × 79 = 6,241.

Q1837.Write the ratio 35 : 84 in its simplest form.

Medium
A 5: 7
B 7: 12
C 5: 12
D None of these
Percentage, Ratio & Average PPSC

Correct Answer: C

Divide both parts by their Greatest Common Divisor, which is 7: 35/7 = 5 and 84/7 = 12.

Q1838.Solve: 0.525 + 0.2 + 0.5

Medium
A 1.125
B 1.205
C 1.225
D 1.250
Basic Arithmetic PPSC

Correct Answer: C

0.525 + 0.2 + 0.5 = 1.225.

Q1839.Calculate the average of the following numbers: 12, 15, 20, 25, 30.

Medium
A 20.4
B 22
C 23
D 25
Percentage, Ratio & Average PPSC

Correct Answer: A

(12 + 15 + 20 + 25 + 30) / 5 = 102 / 5 = 20.4.

Q1840.A, B, C, and D divide a sum of money among themselves in the ratio 7:4:3:2. If D gets Rs. 500 less than A, find the total amount.

Medium
A Rs.100
B Rs.700
C Rs.1600
D Rs.2000
Percentage, Ratio & Average PPSC

Correct Answer: C

Let shares be 7x, 4x, 3x, 2x. Difference A - D = 7x - 2x = 5x = 500 => x = 100. Total amount = (7+4+3+2) × 100 = Rs. 1600.