Page 113 - Maths Skills - 8

Large Numbersarge Numbers
1 188 Comparing Quantities
Comparing Quantities
L

Learning Outcomes

In this chapter, you will learn about:
� Per cent � Tax � Some additional cases
� Percentage increase and decrease � Compound interest � Growth (appreciation) and depreciation
� Discount � Calculation of compound interest by using formulae

Boot-Up (To Recapitulate Previous Knowledge of Concepts)

COMPETENCY BASED QUESTIONS

A. Multiple-Choice Questions
1. What is the correct ratio of 4 km to 400 m?

(i) 4 : 1 (ii) 10 : 1 (iii) 1 : 10 (iv) 1 : 100

2. 1 : 2 is ____________ 2 : 3.
(i) equal to (ii) more than (iii) less than (iv) none of these

3. If 15 bananas cost ` 90, 90 bananas will cost ` ____________.
(i) 159 (ii) 195 (iii) 450 (iv) 540

B. Fill in the Blanks

1. 50% of 50 is _____________.

2. 0.55 is same as _____________%.

3. In the formula, I = P × T × R/100, P stands for _____________.

4. 1 : 4 in percent will be written as _____________.

C. Write ‘T’ for true and ‘F’ for false Statements
1. Two ratios can be compared by converting them to like fractions.

2. Decimals cannot be converted to percentage.

3. When selling price is more than the cost price, there is a profit.

4. Amount is the difference between the Principal and the Interest.