Which of the drawing (a) to (d) show:
i) 2 × 1/5
ii) 2 × 1/2
iii) 3 × 2/3
iv) 3 × 1/4

Solution:

Matching can be easily done by comparing the fractions with the shaded areas given.

i) 2 × 1/5 matches with (d) since two circles are divided into five parts and one part of both the circles is shaded.

2 × 1/5 = 1/5 + 1/5 = 2/5

ii) 2 × 1/2 matches with (b) as one-half of both the drawings is shaded.

2 × 1/2 = 1/2 + 1/2 = 2/2 = 1

iii) 3 × 2/3 matches with (a) since two third of the three circles is shaded.

3 × 2/3 = 2/3 + 2/3 + 2/3 = 6/3 = 2

iv) 3 × 1/4 matches with (c) since one fourth of three squares is shaded.

3 × 1/4 = 1/4 + 1/4 + 1/4 = 3/4

☛ Check: NCERT Solutions for Class 7 Maths Chapter 2

Video Solution:

Which of the drawing (a) to (d) show: i) 2 × 1/5 ii) 2 × 1/2 iii) 3 × 2/3 iv) 3 × 1/4

NCERT Solutions Class 7 Maths Chapter 2 Exercise 2.2 Question 1

Summary:

(i) 2 × 1/5 matches with option d since 2 out 5 parts of the circle are shaded in it; (ii) 2 × 1/2 matches with option b, since one-half of both its drawings are shaded; (iii) 3 × 2/3 matches with option a since 2/3rd of all three drawings are shaded and (iv) 3 × 1/4 matches with option c since 1/4th of all three squares are shaded.

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