A. x2 + 13x – 140 = 0
B. x2 – 13x + 140 = 0
C. x2 – 13x – 140 = 0
D. x2 + 13x + 140 = 0
✅ The correct answer is option C. x2 – 13x – 140 = 0.
Mathematics MCQs
If the sides of a triangle are 26 cm, 24 cm and 10 cm, what is its area?
A. 120 cm2
B. 130 cm2
C. 312 cm2
D. 315 cm2
✅ The correct answer is option A. 120 cm2.
The triangle with sides 26 cm, 24 cm and 10 cm is right angled, where the hypotenuse is 26 cm.
The triangle with sides 26 cm, 24 cm and 10 cm is right angled, where the hypotenuse is 26 cm.
The cost of 16 pens and 8 pencils is Rs.352 and the cost of 4 pens and 4 pencils is Rs.96. Find the cost of each pen?
A. Rs.32
B. Rs.28
C. Rs.36
D. Rs.25
✅ The correct answer is option E. None of these.
Walking 6/7th of his usual speed, a man is 12 minutes too late. What is the usual time taken by him to cover that distance?
A. 1 hr 42 min
B. 1 hr
C. 2 hr
D. 1 hr 12 min
✅ The correct answer is option D. 1 hr 12 min.
New speed = 6/7 of usual speed
New speed = 6/7 of usual speed
Speed and time are inversely proportional.
Hence new time = 7/6 of usual time
Hence, 7/6 of usual time – usual time = 12 minutes
=> 1/6 of usual time = 12 minutes
=> usual time = 12 x 6 = 72 minutes
= 1 hour 12 minutes
A Man travelled a distance of 61 km in 9 hours. He travelled partly on foot at 4 km/hr and partly on bicycle at 9 km/hr. What is the distance travelled on foot?
A. 12 km
B. 14 km
C. 16 km
D. 18 km
✅ The correct answer is option C. 16 km.
If 12 members family spend Rs. 850 in 10 days. Then a family of 8 people will spend Rs. 340 in how many days.
A. 8
B. 7
C. 6
D. 5
✅ The correct answer is option C. 6.
How much 60% of 50 is greater than 40% of 30?
A. 18
B. 13
C. 15
D. 20
✅ The correct answer is option A. 18.
The true discount on Rs. 2562 due 4 months hence is Rs. 122. The rate percent is:_________?
A. 12%
B. 13%
C. 15%
D. 14%
✅ The correct answer is option C. 15%.
The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)?
A. 23.57 cm
B. 47.14 cm
C. 84.92 cm
D. 94.94 cm
✅ The correct answer is option A. 23.57 cm.
Let the side of the square be a cm.
Let the side of the square be a cm.
After decreasing 24% in the price of an article costs Rs.912. Find the actual cost of an article?
A. 1400
B. 1300
C. 1200
D. 1100
✅ The correct answer is option C. 1200.