MP Board Class 8th Maths Solutions Chapter 13 Direct and Inverse Proportion Ex 13.2 Question 1. Which of the following are in inverse proportion? (i) The number of workers on a job and the time to complete the job. (ii) The time taken for a journey and the distance travelled in a uniform speed. (iii) … Read more
MP Board Class 8th Maths Solutions Chapter 15 आलेखों से परिचय Ex 15.1 प्रश्न 1. निम्न आलेख, किसी अस्पताल में एक रोगी का प्रति घण्टे लिया गया तापमान दर्शाता है – रोगी का तापमान 1 बजे दोपहर क्या था? रोगी का तापमान 38.5°C कब था? इस पूरे अन्तराल में रोगी का तापमान दो बार एक … Read more
MP Board Class 8th Maths Solutions Chapter 13 Direct and Inverse Proportion Ex 13.1 Question 1. Following are the car parking charges near a railway station upto 4 hours ₹ 60 8 hours ₹ 100 12 hours ₹ 140 24 hours ₹ 180 Check if the parking charges are in direct proportion to the parking … Read more
MP Board Class 8th Maths Solutions Chapter 14 Factorization Ex 14.4 Find and correct the errors in the following mathematical statements. Question 1. 4(x – 5) = 4x – 5 Solution: The given statement is incorrect. The correct statement is 4(x – 5) = 4x – 20. Question 2. x(3x + 2) = 3×2 + … Read more
MP Board Class 8th Maths Solutions Chapter 14 गुणनखंडन Ex 14.4 प्रश्न 1. निम्नलिखित गणितीय कथनों में त्रुटि ज्ञात करके उसे सही कीजिए – 1. 4 (x – 5) = 4x – 5 2. x (3x + 2) = 3×2 + 2 3. 2x + 3y = 5xy 4. x + 2x + 3 = … Read more
MP Board Class 8th Maths Solutions Chapter 8 Comparing Quantities Ex 8.1 Question 1. Find the 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 to ₹ 5. Solution: (a) The ratio is … Read more
MP Board Class 8th Maths Solutions Chapter 14 Factorization Ex 14.3 Question 1. Carry out the following divisions. (i) 28×4 ÷ 56x (ii) -36y3 ÷ 9y2 (iii) 66pq2r3 ÷ 11qr2 (iv) 34x3y3z3 ÷ 51 xy2z3 (v) 12a8b8 ÷ (- 6a6b4). Solution: (i) 28×4 ÷ 56x Question 2. Divide the given polynomial by the given monomial. … Read more
MP Board Class 8th Maths Solutions Chapter 8 Comparing Quantities Ex 8.3 Question 1. Calculate the amount and compound interest on (a) ₹ 10,800 for 3 years at 12% per annum compounded annually. (b) ₹ 18,000 for 2 years at 10% per annum compounded annually. (c) ₹ 62,500 for 1 years at 8% per annum … Read more
MP Board Class 8th Maths Solutions Chapter 14 Factorization Ex 14.2 Question 1. Factorise the following expressions. (i) a2 + 8o + 16 (ii) p2 – 10p + 25 (iii) 25m2 + 30m+ 9 (iv) 49y2 + 84yz + 36z2 (v) 4×2 – 8x + 4 (vi) 121b2 – 88bc + 16c2 (vii) (l + … Read more
MP Board Class 8th Maths Solutions Chapter 8 Comparing Quantities Ex 8.2 Question 1. A man got a 10% increase in his salary. If his new salary is ₹ 1,54,000,find his original salary. Solution: We have, Increase in salary = 10% New salary = ₹ 154000 Let original salary be ₹ s. ∴ His original … Read more
MP Board Class 8th Maths Solutions Chapter 14 Factorization Ex 14.1 Question 1. Find the common factors of the given terms, (i) 12x, 36 (ii) 2y, 22xy (iii) 14pq, 28p2q2 (iv) 2x, 3×2, 4 (v) 6abc, 24ab2,12a2b (vi) 16×3, – 4×2, 32x (vii) 10pq, 20qr, 30rp (viii) 3x2y3, 10x3y2, 6x2y2z Solution: (i) The given terms … Read more
MP Board Class 8th Maths Solutions Chapter 14 गुणनखंडन Ex 14.3 प्रश्न 1. (i) 28×4 ÷ 56x (ii) – 36y3 ÷ 9y2 (iii) 66pq2r3 ÷ 11qr2 (iv) 34x3y3z3 ÷ 51xy2z3 (v) 12a8b8 ÷ (- 6a6b4) हल: प्रश्न 2. दिए हुए बहुपद को दिए हुए एकपदी से भाग दीजिए – (i) (5×2 – 6x) ÷ 3x … Read more
MP Board Class 8th Maths Solutions Chapter 14 गुणनखंडन Ex 14.2 प्रश्न 1. निम्नलिखित व्यंजकों के गुणनखण्ड कीजिए – a2 + 8a + 16 p2 – 10p + 25 25m2 + 30m + 9 49y2 + 84yz + 36z2 4×2 – 8x + 4 121b2 – 88bc + 16c2 (l + m)2 – 4lm a4 … Read more
MP Board Class 8th Maths Solutions Chapter 15 Introduction to Graphs Ex 15.3 Question 1. Draw the graphs for the following tables of values, with suitable scales on the axes. (a) Cost of apples (b) The horizontal line x-axis shows the time (in hours) and vertical line y-axis shows the distance (in km). (i) How … Read more
MP Board Class 8th Maths Solutions Chapter 15 Introduction to Graphs Ex 15.2 Question 1. Plot the following points on a graph sheet. Verify if they lie on a line (a) A(4, 0), B(4, 2), C(4, 6), D(4, 2.5) (b) P(1, 1), Q(2, 2), R(3, 3), S(4, 4) (c) K(2, 3), L(5, 3), M(5, 5), … Read more