Woksheet Solutions: Vedic Maths | Mental Mathematics for Class 8 PDF Download

Q1: What is the equivalent fraction for 0.75?
(a) 3/4
(b) 4/3
(c) 7/5
(d) 5/7
Ans: (a)

Q2: What is the slope of the line y = 2x + 1?
(a) 2
(b) 3
(c) 4
(d) 5
Ans: (a)

Q3: What is the median of the following set of numbers: 3, 4, 7, 8, 9?
(a) 6
(b) 7
(c) 8
(d) 9
Ans: (b)

Q4: What is the length of a rectangular room measuring 7 meters by 4 meters?
(a) 11 meters
(b) 28 meters
(c) 31 meters
(d) 35 meters
Ans: (b)

Q5: What is the area of a triangle with a base of 8 cm and a height of 5 cm?
(a) 20 cm²
(b) 40 cm²
(c) 30 cm²
(d) 50 cm²
Ans: (a)

Q6: What is the area of a circle with a radius of 6 cm?
(a) 113.1 cm²
(b) 36 cm²
(c) 72 cm²
(d) 28.26 cm²
Ans: (a)

Q7. Which of the following shapes is a sphere?
(a) Cube
(b) Cylinder
(c) Rectangular prism
(d) Ball
Ans: (d)

Q8: What is the product of 5/6 and 4/5?
(a) 1/3
(b) 1/2
(c) 4/5
(d) 2/3
Ans: (d) 

Q9: What is the value of the?
1, 4, 7, 10, 13
(a) 16
(b) 14
(c) 15
(d) 19
Ans: (a)

Q10: What is the formula for finding the volume of a cylinder?
(a) πr²h
(b) πr³h
(c) πrh²
(d) πr²h²
Ans: (a)

Q11: What is the probability of rolling a 4 on a standard dice?
(a) 1/6
(b) 1/5
(c) 1/4
(d) 1/3
Ans: (a)

Q12: What is the volume (capacity) of a rectangular prism with a length of 10 cm, a width of 5 cm, and a height of 2 cm?
(a) 100 cm³
(b) 60 cm³
(c) 20 cm³
(d) 10 cm³
Ans: (a)

Q13: What is the volume (capacity) of a rectangular prism with a length of 10 cm, a width of 6 cm, and a height of 5 cm?
(a) 120 cm³
(b) 350 cm³
(c) 300 cm³
(d) 700 cm³
Ans: (c)

Q14: What is the volume of a cylinder with a height of 8 cm and a radius of 4 cm?
(a) 101.13 cm³
(b) 402.12 cm³
(c) 40.45 cm³
(d) 80.90 cm³
Ans: (b)

Q15: How many sides does a triangle have?
(a) 4
(b) 5
(c) 3
(d) 6
Ans: (c)