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Title: NCERT Maths Class 7Chapter 4 Exercise 4.4
Description: NCERT Maths class 7 chapter 4 Exercise 4.4
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(Chapter – 4) (Simple Equations)
(Class – VII)

Exercise 4
...

(b) One-fifth of a number minus 4 gives 3
...

(d) When I subtracted 11 from twice a number, the result was 15
...

(f) Ibenhal thinks of a number
...

5
(g) Answer thinks of a number
...

2

Answer 1:
(a) Let the number be x
...

According to the question,





y
43
5

y
 3 4
5
y
7
5
y  75
y  35

1
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(Chapter – 4) (Simple Equations)
(Class – VII)

(c) Let the number be z
...

According to the question,
 2x  15  11
 2 x  26
26
 x
2
 x  13
(e) Let the number be m
...

According to the question,





n  19  8  5
n  19  40
n  40 19
n  21

n  19
8
5

2
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(Chapter – 4) (Simple Equations)
(Class – VII)

(g) Let the number be x
...
The highest score is 87
...
The vertex angle is 40
...
)
(c) Sachin scored twice as many runs as Rahul
...
How many runs did each one score?

Answer 2:
(a) Let the lowest marks be y
...


3
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(Chapter – 4) (Simple Equations)
(Class – VII)

(b) Let the base angle of the triangle be b
...

(c) Let the score of Rahul be x runs and Sachin’s score is 2 x
...


Question 3:
Solve the following:
(i) Irfan says that he has 7 marbles more than five times the marbles Parmit has
...
How many marbles does Parmit have?
(ii) Laxmi’s father is 49 years old
...

What is Laxmi’s age?
(iii) People of Sundergram planted a total of 102 trees in the village garden
...
The number of non-fruit trees were two more than three
times the number of fruit trees
...
tiwariacademy
...


5m  7  37

According to the question,


5m  37  7



5m  30



m



m6

30
5

Thus, Parmit has 6 marbles
...

Then her father’s age =  3 y  4  years
3 y  4  49

According to question,


3 y  49  4



3 y  45



y



y  15

45
3

Thus, the age of Laxmi is 15 years
...

Then the number of non-fruits tree = 3t  2

t  3t  2  102

According to the question,


4t  2  102



4t  102  2



4t  100



t



t  25

100
4

Thus, the number of fruit trees are 25
...
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...

According to the question,

7n  90  300

7n  300  90

7n  210
210

n
7

n  30

7n  50  40  300

Thus, the required number is 30
Title: NCERT Maths Class 7Chapter 4 Exercise 4.4
Description: NCERT Maths class 7 chapter 4 Exercise 4.4
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