Chapter 2 Fractions and Decimals Exercise 2.1

Chapter 2 Fractions and Decimals Exercise 2.1

Question 1.
Solution:

Solution:

Question 2.
Arrange the following in descending order:

Solution:

Question 3.
In a “magic square” the sum of number in each row, in each column and along the diagonals is the same. Is this a magic square?

Solution:

Solution:

Question 5.
Find the perimeter of (i) ∆ABE (ii) the rectangle BCDE in this figure. Whose perimeter is greater?
Solution:
(i) Perimeter of ∆ABE


Thus perimeter of ∆ABE is greater than the perimeter of the rectangle BCDE.

Question 6.

Solution:
The width of the picture

Hence, the required width to be trimmed = cm.

Solution:
Let the whole part of the apple be 1.