Exercise 1.8

## RD Sharma Class 8 Math First Chapter Rational Numbers Exercise 1.7 Solution

Exercise 1.7   1. Divide: 2. Find the value and express as a rational number in standard from: 9. Find (x+y) ÷ (x-y), if

## RD Sharma Class 8 Math First Chapter Rational Numbers Exercise 1.6 Solution

Exercise 1.6   1. Verify the property:  x⨯y = y⨯x by taking:   Solution: 2. Verify the property : x⨯(x⨯z) = (x⨯y) ⨯ z by taking:   Solution: 3. Verify the property: x⨯ ( y+z) = x⨯y+x⨯z by taking   Solution: 4. Use the distributivity  of multiplication of rational number over their addition to simplify: […]

## RD Sharma Class 8 Math First Chapter Rational Numbers Exercise 1.5 Solution

Exercise 1.5   1. Multiply 2. Multiply 3. Simplify each of the following and express the result as rational number as standard from: 4. Simplify 5. Simplify:

## RD Sharma Class 8 Math First Chapter Rational Numbers Exercise 1.4 Solution

Exercise 1.4   1. Simplify each other of the rational number and write as rational number of the form p/q : 2. Express each other of the following as rational number of the from p/q: 3. Simplify:

## RD Sharma Class 8 Math 14th Chapter Compound Interest Exercise 14.5 Solution

Exercise  14.5   1. Ms. Cherian purchases a boat for Rs. 16000. If the total cost of the boat is depreciating at the rate of 5% per annum, calculate its value after 2 years.   Solution: Given, Price of boat = Rs. 16000 Depreciation rate = 5% per annum So, 2. The value of a […]

## RD Sharma Class 8 Math 14th Chapter Compound Interest Exercise 14.4 Solution

Exercise 14.4   1. The present population of a town is 28000. If it increases at the rate of 5% per annum, what will be its population after 2 years?   Solution: Here, P = Initial population = 28000 R = Rate of growth of population = 5% per annum n = Number of years […]

## RD Sharma Class 8 Math 14th Chapter Compound Interest Exercise 14.3 Solution

Exercise 14.3   1. On what sum will the compound interest at 5% per annum for 2 years compounded annually be Rs 164? Solution: Let the sum be Rs x. We know that: Thus, the required sum is Rs 1600. 2. Find the principal if the interest compounded annually at the rate of 10% for […]

## RD Sharma Class 8 Math 14th Chapter Compound Interest Exercise 14.2 Solution

Exercise 14.2   1. Compute the amount and the compound interest in each of the following by using the formulae when:   (i) Principle = Rs 3000, Rate = 5%, Time = 2 years (ii) Principle = Rs 3000, Rate =18%, Time = 2 years (iii) Principle = Rs 5000, Rate = 10 paise per […]

## RD Sharma Class 8 Math 14th Chapter Compound Interest Exercise 14.1 Solution

Exercise 14.1   1. Find the compound interest when principal = Rs 3000, rate = 5% per annum and time = 2 years.   Solution: According to the question, Principal amount for the first year = Rs 3,000 i.e., The amount at the end of the second year = Rs 3,150+Rs 157.50= Rs 3307.50 Therefore, […]