Mathematics — All MCQs

1905 questions available

Showing 1361–1380 of 1905

Q1361.What is the 70% of 80?

Medium
A 56
B 58
C 59
D None of these
Percentage, Ratio & Average PPSC

Correct Answer: A

Calculated as: 80 * (70/100) = 56.

Q1362.Income of A is 25% less than B. How much percent B's income would be more than that of A?

Medium
A 48%
B 35%
C 30%
D 33%
Percentage, Ratio & Average PPSC

Correct Answer: D

Let B's income = 100. A's income = 75 (25% less than B). B's income is more than A's by (25 / 75) * 100 = 33.33%.

Q1363.A hockey team won 6 games and lost 8, the ratios of wins to number of games is _____?

Medium
A 5:8
B 4:6
C 3:7
D None of these
Percentage, Ratio & Average PPSC

Correct Answer: C

Wins = 6. Total games = 6 + 8 = 14. Ratio of wins to total games = 6 : 14 = 3 : 7.

Q1364.If the sum of two angles is 180°, they are called?

Medium
A Right angle
B Reflex angle
C Complementary angle
D Supplementary angle
Geometry & Mensuration PPSC

Correct Answer: D

Two angles are supplementary when their measures add up to 180 degrees. They are complementary when they add up to 90 degrees.

Q1365.What is 20% of 6440?

Medium
A 1220
B 1288
C 1300
D 1240
Percentage, Ratio & Average PPSC

Correct Answer: B

Calculated as: 6440 * (20/100) = 1288.

Q1366.Find the average of 1/2 , 2/4 , 3/6?

Medium
A 2/3
B 3/4
C 1/2
D None of these
Percentage, Ratio & Average PPSC

Correct Answer: C

Simplifying the fractions: 1/2, 2/4 = 1/2, and 3/6 = 1/2. The average of three identical values of 1/2 is (1/2 + 1/2 + 1/2) / 3 = (3/2) / 3 = 1/2.

Q1367.If you buy something and sell it at triple the price, your profit percentage will be?

Medium
A 100%
B 200%
C 300%
D 400%
Percentage, Ratio & Average PPSC

Correct Answer: B

Let Cost Price (CP) = 100. Selling Price (SP) = 300. Profit = SP - CP = 200. Profit % = (Profit / CP) * 100 = (200 / 100) * 100 = 200%.

Q1368.90% of 90 = ____?

Medium
A 90
B 84
C 81
D 72
Percentage, Ratio & Average PPSC

Correct Answer: C

Calculated as: 90 * (90/100) = 81.

Q1369.There is a family of 6: P, Q, R, S, T, U. Professions: Engineer, Doctor, Teacher, Salesman, Manager, Lawyer. 2 married couples. Manager is grandfather of U (Engineer). R (Salesman) is married to lady Teacher. Q is mother of U & T. Doctor S is married to Manager. How many male members are there?

Medium
A Two
B Three
C Data inadequate
D Four
General MCQs PPSC

Correct Answer: C

P (Manager, Grandfather, male) and R (Salesman, husband, male) are males. S (Doctor, female) and Q (Teacher, female) are females. The genders of U (Engineer) and T (Lawyer) are not specified. Thus, data is inadequate to determine the exact number of males.

Q1370.The average age of 5 members of a family is 21. If the grandfather is included, the average age increases by 9 years. What is the age of the grandfather?

Medium
A 84
B 65
C 75
D 60
Percentage, Ratio & Average PPSC

Correct Answer: C

Sum of ages of 5 members = 5 * 21 = 105. With grandfather, total members = 6 and new average = 30. Sum of 6 members = 6 * 30 = 180. Grandfather's age = 180 - 105 = 75.

Q1371.70% of 70 = ____?

Medium
A 47
B 48
C 49
D 50
Percentage, Ratio & Average PPSC

Correct Answer: C

Calculated as: 70 * (70/100) = 49.

Q1372.A company has 10 members with an average age of 30. A new member aged 40 joins. What is the new average age?

Medium
A 30.5
B 31
C 33
D 32
Percentage, Ratio & Average PPSC

Correct Answer: B

Sum of ages of 10 members = 30 * 10 = 300. Adding the 40-year-old gives a sum of 340 for 11 members. New average = 340 / 11 = 30.91, which rounds to 31.

Q1373.Average age of A and B is 30 years, that of B and C is 32 years and the average age of C and A is 34 years. The age of C is?

Medium
A 33 years
B 34 years
C 35 years
D 36 years
Percentage, Ratio & Average PPSC

Correct Answer: D

A + B = 60, B + C = 64, C + A = 68. Summing these: 2(A + B + C) = 192 -> A + B + C = 96. Age of C = (A + B + C) - (A + B) = 96 - 60 = 36.

Q1374.An inch is equal to how many centimeters?

Medium
A 3.2 cm
B 2.54 cm
C 1.82 cm
D None of these
General MCQs PPSC

Correct Answer: B

An inch is defined exactly as 2.54 centimeters.

Q1375.In a class of 500 students, 340 are present. What is the percentage of present students?

Medium
A 68%
B 70%
C 72%
D 65%
Percentage, Ratio & Average PPSC

Correct Answer: A

Percentage of present students = (340 / 500) * 100 = 68%.

Q1376.How many days are there in one week?

Medium
A 2
B 3
C 5
D 7
Practical Mathematics PPSC

Correct Answer: D

A standard calendar week has exactly 7 days.

Q1377.What is the common factor in X^3 + X^2 + X?

Medium
A X
B X^2
C X^3
D None of these
Algebra PPSC

Correct Answer: A

Factoring X out of the expression: X * (X^2 + X + 1). The common factor is X.

Q1378.If each interior angle of a regular polygon is 162°, how many sides does the polygon have?

Medium
A 20
B 40
C 30
D 50
Geometry & Mensuration PPSC

Correct Answer: A

The formula for each interior angle is (n - 2) * 180 / n = 162. Multiplying gives 180n - 360 = 162n -> 18n = 360 -> n = 20 sides.

Q1379.If a person is traveling 440 km at an average speed, approximately how much time will it take to cover the distance in 2025?

Medium
A 7 hrs
B 8 hrs
C 6hrs
D 5 hrs
Time, Work & Speed PPSC

Correct Answer: C

Assuming a typical highway long-distance speed of around 73-75 km/h: Time = Distance / Speed = 440 / 73.3 ≈ 6 hours.

Q1380.If (x - 3)(x - 4) = 1, what is the value of x?

Medium
A 2
B 1
C 3.5
D (7 ± √5)/2
Algebra PPSC

Correct Answer: D

Expanding: x² - 7x + 12 = 1 => x² - 7x + 11 = 0. Solving via quadratic formula: x = [7 ± √(49 - 44)]/2 = (7 ± √5)/2.