# Tag Archives: RD Sharma Class-8

Chapter 22 Mensuration III (Surface Area And Volume Of Right Circular Cylinder) – Exercise 22.2 | Set 1 Question 21.  A well is dug 20 m… Read More
Question 1. Find the compound interest when principal = Rs 3000, rate = 5% per annum and time = 2 years. Solution: Given that, Principal… Read More
Question 1. Four-fifth of a number is more than three-fourth of the number by 4. Find the number. Solution: Let us consider the number as… Read More
Question 11. A field is 150m long and 100m wide. A plot (outside the field) 50m long and 30m wide is dug to a depth… Read More
Chapter 10 Direct And Inverse Variations – Exercise 10.2 | Set 1 Question 10. A car can finish a certain journey in 10 hours at… Read More
Question 1. In which of the following tables x and y vary inversely: i) x 4 3 12 1 y 6 8 2 24 Solution:… Read More
Question 10. A classroom is 11 m long, 8 m wide, and 5 m high. Find the sum of the areas of its floor and… Read More
Question 1. Find the surface area of a cuboid whose (i) length = 10 cm, breadth = 12 cm, height = 14 cm(ii) length =… Read More
Chapter 9 Linear Equation In One Variable – Exercise 9.4 | Set 1 Question 14. I am currently 5 times as old as my son.… Read More
Chapter 13 Profit Loss Discount And Value Added Tax – Exercise 13.1 | Set 1 Question 11. If the selling price of 18 oranges is… Read More
Question 1. A student buys a pen for Rs. 90 and sells it for Rs. 100. Find his gain and gain percent? Solution: Given, the… Read More
Making use of the cube root table, find the cube root of the following (correct to three decimal places) : Question 1.  7 Solution:  We… Read More
Chapter 12 Percentage – Exercise 12.2 | Set 1 Question 14. An alloy of tin and copper consists of 15 parts of tin and 105… Read More
Question 1. Find:(i) 22% of 120(ii) 25% of Rs 1000(iii) 25% of 10 kg(iv) 16.5% of 5000 meter(v) 135% of 80 cm(vi) 2.5% of 10000… Read More
Question 1. Find the square root of : (i) 441/961 (ii) 324/841 (iii) 4 29⁄29  (iv) 2 14⁄25  (v) 2 137⁄196     (vi) 23… Read More