MCQs

Q281: If a + b = 5 and ab = 5, then a – b = _____?

• A) √5
• B) √15
• C) 5

Q282: If the height of a triangle is 10 cm and its shadow is 10 cm, which angle is formed?

• A) 30°
• B) 45°
• C) 60°

Q283: When is a matrix A skew-symmetric?

• A) A = Aᵀ
• B) A = –Aᵀ
• C) A + Aᵀ = I

Q284: Naeem sold a computer for Rs 25000 at which he suffered 20% loss. Find the purchase price of the computer?

• A) 31000
• B) 41250
• C) 31250

Q285: A triangle has sides 30 and 70. What can be the third side?

• A) 20
• B) 40
• C) 50

Q286: If the sum of two numbers is 13 and their difference is 23, what is their product?

• A) -90
• B) 0
• C) -100

Q287: In a class of 24 students, the ratio of men to women is 3 : 5. How many women are there?

• A) 10
• B) 15
• C) 5

Q288: Find the value of X in the analogy X : 2 :: 3 : 4?

• A) 1.5
• B) 0.5
• C) 2.5

Q289: If 4x/6=2, then x =____?

• A) 4
• B) 2
• C) 3

Q290: If p is 5 times of q, what percentage of q is less than p?

• A) 200%
• B) 300%
• C) 400%