Class 8 Maths NCERT Solutions Chapter 11: Mensuration Ex – 11.1 Question 1. A square and a rectangular field with measurements as given in the figure have the same perimeter. Which field has a larger area? Solution. Area of the square field = a x a = 60 m x 60 m = 3,600 […]
Class 8 Maths NCERT Solutions Chapter 1: Rational Numbers Ex – 1.1 Question 1. Using appropriate properties find: (i) −25×35+52−35×16 (ii) 25×(−37)−16×32+114×25 Solution. Question 2. Write the additive inverse of each of the following: Solution. (i) 28 Additive inverse of 28 is 28 (ii) −59 −6−5=65 Additive inverse of −6−5 is −65 (iii) −6−5 −6−5=65 Additive inverse of −6−5 is −65 (iv) 2−9 Additive inverse of 2−9 is 29 (v) 19−6 Additive inverse of  19−6 is 196
Class 8 Maths NCERT Solutions Chapter 2: Linear Equations in One Variable Ex – 2.1 Question 1. Solve the following equations: Solution. 1. x-2 = 7 2. y+3=10 3. 6=z+2 4. 37+x=177 5. 6x=12 6. t5=10 7. 2×3=18 8. 1.6=y1.5 9. 7x-9=16 10. 14y-8=13 11. 17+6p=9 12. x3+1=715 Ex – 2.2 Question 1. If you subtract 12 from a number and multiply the result 12 by you get 18 What is the
Class 8 Maths NCERT Solutions Chapter 3: Understanding Quadrilaterals Ex – 3.1 Question 1. Given here are some figures : Classify each of them on the basis of the following : (a) Simple curve (b) Simple closed curve (c) Polygon (d) Convex polygon (e) Concave polygon Solution. (a) ⟷ 1, 2, 5, 6, 7 (b) ⟷ 1, 2, 5, 6,
Class 8 Maths NCERT Solutions Chapter 4: Practical Geometry Ex – 4.1 Question 1. Construct the following quadrilaterals: (i)Â Quadrilateral ABCD AB = 4.5 cm BC = 5.5 cm CD = 4 cm AD = 6 cm AC = 7 cm (ii)Â Quadrilateral JUMP JU = 3.5 cm UM = 4 cm MP = 5 cm PJ
Class 8 Maths NCERT Solutions Chapter 5: Data Handling Ex – 5.1 Question 1. For which of these would you use a histogram to show the data? (a) The number of letters for different areas in a postman’s bag. (b) The height of competitors in an athletics meet. (c) The number of cassettes produced by 5 companies. (d) The
Class 8 Maths NCERT Solutions Chapter 6: Squares and Square Roots Ex – 6.1 Question 1. What will be the unit digit of the squares of the following numbers ? (i) 81 (ii) 272 (iii) 799 (iv) 3853 (v) 1234 (vi) 26387 (vii) 52698 (viii) 99880 (ix) 12796 (x) 55555 Solution. (i) 81 ∵ 1×1 ∴ The unit digit of the square of the number 81
Class 8 Maths NCERT Solutions Chapter 7: Cubes and Cube Roots Ex – 7.1 Question 1. Which of the following numbers are not perfect cubes? (i)Â 216 (ii)Â 128 (iii)Â 1000 (iv)Â 100 (v)Â 46656 Solution. (i) 216 (ii)Â 128 (iii) 1000 (iv) 100 (v) 46656 Question 2. Find the smallest number by which each of the following numbers must
Class 8 Maths NCERT Solutions Chapter 8: Comparing Quantities Ex – 8.1 Question 1. Find ratio of the following: (a) Speed of a cycle 15 km per hour to the speed of scooter 30 km per hour. (b) 5 m to 10 km (c) 50 paise ₹ 5 Solution. (a) Speed of a cycle 15 km per
Class 8 Maths NCERT Solutions Chapter 9: Algebraic Expressions and Identities Ex – 9.1 Question 1. Identify the terms, their coefficients for each of the following expressions: (i) 5xyz2−3zy (ii) 1+x+x2 (iii) 4x2y2−4x2y2z2+z2 (iv) 3 – pq + qr – rp (v) x2+y2−xy (vi) 0.3a – 0.6ab + 0.5b. Solution. (i) 5xyz2−3zy (ii) 1+x+x2 (iii) 4x2y2−4x2y2z2+z2 (iv) 3 – pq + qr –
