Fill in the blanks on the basis of the law of proportion: S. N.o. Proportionate terms Product of the outer terms Product of the middle terms 1 1 : 2 : : 4 : 8 1 × 8 = 8 2 × 4 = 8 2 5 : 6 : : 75 : 90 _____ _____

Given, 5 : 6 : : 75 : 90 In a proportion, the product of the outer terms is equal to the product of the middle terms. Product of the outer terms = 5 × 90 = 450 Product of the middle terms = 6 × 75 = 450 Hence, S. N.o. Proportionate terms Product of the outer terms Product of the middle terms 1 1 : 2 : : 4 : 8 1 × 8 = 8 2 × 4 = 8 2 5 : 6 : : 75 : 90 5 × 90 = 450 6 × 75 = 90

Fill in the blanks on the basis of the law of proportion: S. N.o. Proportionate terms Product of the outer terms Product of the middle terms 1 1 : 2 : : 4 : 8 1 × 8 = 8 2 × 4 = 8 2 3 : 4 : : 24 : 32 _____ _____ = 96

Given, 3 : 4 : : 24 : 32 In a proportion, the product of the outer terms is equal to the product of the middle terms. Product of the outer terms = 3 × 32 = 96 Product of the middle terms = 4 × 24 = 96 Hence, S. N.o. Proportionate terms Product of the outer terms Product of the middle terms 1 1 : 2 : : 4 : 8 1 × 8 = 8 2 × 4 = 8 2 3 : 4 : : 24 : 32 3 × 32 = 96 4 × 24 = 96

Fill in the blanks on the basis of the law of proportion: S. N.o. Proportionate terms Product of the outer terms Product of the middle terms 1 1 : 2 : : 4 : 8 1 × 8 = 8 2 × 4 = 8 2 2 . 5 : 2 . 4 : : 7 . 5 : 7 . 2 2 . 5 × 7 . 2 = _____ _____ = 18

Given, 2 . 5 : 2 . 4 : : 7 . 5 : 7 . 2 In a proportion, the product of the outer terms is equal to the product of the middle terms. Product of the outer terms = 2 . 5 × 7 . 2 = 18 Product of the middle terms = 2 . 4 × 7 . 5 = 18 Hence, S. N.o. Proportionate terms Product of the outer terms Product of the middle terms 1 1 : 2 : : 4 : 8 1 × 8 = 8 2 × 4 = 8 2 2 . 5 : 2 . 4 : : 7 . 5 : 7 . 2 2 . 5 × 7 . 2 = 18 2 . 4 × 7 . 5 = 18

Fill in the blanks on the basis of the law of proportion: S. N.o. Proportionate terms Product of the outer terms Product of the middle terms 1 1 : 2 : : 4 : 8 1 × 8 = 8 2 × 4 = 8 2 2 : 5 : : 4 : _____ _____ 20

Given, 2 : 5 : : 4 ____ Let the fourth proportion be x . Then, we have 2 : 5 : : 4 : x Product of the outer terms = 2 × x = 2 x Product of the middle terms = 5 × 4 = 20 In a proportion, the product of the outer terms is equal to the product of the middle terms. So, 2 x = 20 ⇒ x = 10 Hence, S. N.o. Proportionate terms Product of the outer terms Product of the middle terms 1 1 : 2 : : 4 : 8 1 × 8 = 8 2 × 4 = 8 2 2 : 5 : : 4 : 10 2 × 10 = 20 5 × 4 = 20

HARD

7th Chhattisgarh Board

IMPORTANT

Earn 100

Complete the given table.

Number of books Price $($ in $₹)$

$50$ $2500$

$75$ $. . . . . . . . .$

$. . . . . . . . .$ $100$

$. . . . . . . . .$ $3000$

Important Questions on Proportion

EASY

7th Chhattisgarh Board

IMPORTANT

Mathematics Class - VII>Chapter 14 - Proportion>Exercise 1>Q (i)

Verify whether the ratio of the first & second term is equal to the ratio of third & fourth term:

1 : 5

and

6 : 30

EASY

7th Chhattisgarh Board

IMPORTANT

Mathematics Class - VII>Chapter 14 - Proportion>Exercise 1>Q (ii)

Verify whether the ratio of the first & second term is equal to the ratio of third & fourth term:

4 : 12

and

18 : 54

EASY

7th Chhattisgarh Board

IMPORTANT

Mathematics Class - VII>Chapter 14 - Proportion>Exercise 1>Q (iii)

Verify whether the ratio of the first & second term is equal to the ratio of third & fourth term:

20 : 10

and

30 : 15

EASY

7th Chhattisgarh Board

IMPORTANT

Mathematics Class - VII>Chapter 14 - Proportion>Exercise 2>Q 2

Fill in the blanks on the basis of the law of proportion:

S. N.o.	Proportionate terms	Product of the outer terms	Product of the middle terms
$1$	$1 : 2 : : 4 : 8$	$1 \times 8 = 8$	$2 \times 4 = 8$
$2$	$5 : 6 : : 75 : 90$	_____	_____

EASY

7th Chhattisgarh Board

IMPORTANT

Mathematics Class - VII>Chapter 14 - Proportion>Exercise 2>Q 3

Fill in the blanks on the basis of the law of proportion:

S. N.o.	Proportionate terms	Product of the outer terms	Product of the middle terms
$1$	$1 : 2 : : 4 : 8$	$1 \times 8 = 8$	$2 \times 4 = 8$
$2$	$3 : 4 : : 24 : 32$	_____	_____ $= 96$

EASY

7th Chhattisgarh Board

IMPORTANT

Mathematics Class - VII>Chapter 14 - Proportion>Exercise 2>Q 4

Fill in the blanks on the basis of the law of proportion:

S. N.o.	Proportionate terms	Product of the outer terms	Product of the middle terms
$1$	$1 : 2 : : 4 : 8$	$1 \times 8 = 8$	$2 \times 4 = 8$
$2$	$2.5 : 2.4 : : 7.5 : 7.2$	$2.5 \times 7.2 =$ _____	_____ $= 18$

EASY

7th Chhattisgarh Board

IMPORTANT

Mathematics Class - VII>Chapter 14 - Proportion>Exercise 2>Q 5

Fill in the blanks on the basis of the law of proportion:

S. N.o.	Proportionate terms	Product of the outer terms	Product of the middle terms
$1$	$1 : 2 : : 4 : 8$	$1 \times 8 = 8$	$2 \times 4 = 8$
$2$	$2 : 5 : : 4 :$ _____	_____	$20$

EASY

7th Chhattisgarh Board

IMPORTANT

Mathematics Class - VII>Chapter 14 - Proportion>Activity>Q 1

Two friends Hamida and Anu went to a market to buy kites. They bought

45

kites for

₹ 15

. Anu gave

₹ 9

and Hamida gave

₹ 6

. When they returned home, Anu divided the kites like this: She said, “Two kites for you and three kites for me.” Now say: In what ratio is Anu dividing the kites between Hamida and Anu?

Number of books	Price $($ in $₹)$
$50$	$2500$
$75$	$. . . . . . . . .$
$. . . . . . . . .$	$100$
$. . . . . . . . .$	$3000$

Complete the given table. Number of books Price (in ₹) 50 2500 75 ......... ......... 100 ......... 3000

Important Questions on Proportion

Learn and Prepare for any exam you want !

Complete the given table.

Number of books Price $($ in $₹)$

$50$ $2500$

$75$ $. . . . . . . . .$

$. . . . . . . . .$ $100$

$. . . . . . . . .$ $3000$