NCERT Solution class 7 Mathematics EXERCISE- 2.7
CHAPTER – 2
EXERCISE – 2.7
Q1. Find:
(i) 0.4 ÷2
SOLUTIONS:-
= 0.2
(ii) 0.35 ÷ 5
SOLUTION:-
= 0.07
(iii) 2.48 ÷ 4
SOLUTION:-
= 0.62
(iv) 65.4 ÷ 6
SOLUTION:-
= 80.4
(v) 651.2 ÷ 4
SOLUTION:-
= 0.35
(vi) 14.49 ÷ 7
SOLUTION:-
= 844.08
(vii) 3.96 ÷ 4
SOLUTION:-
= 1.72
(viii) 0.80 ÷ 5
SOLUTION:-
= 0.16
Q 2. Find:
(i) 4.8 ÷ 10
SOLUTION:-
= 0.48
(ii) 52.5 ÷ 10
SOLUTION:-
= 5.25
(iii) 0.7 ÷10
SOLUTION:-
= 0.07
(iv) 33.1 ÷ 10
SOLUTION:-
= 3.31
(v) 272.23 ÷ 10
SOLUTION:-
= 27.223
(vi) 0.56 ÷ 10
SOLUTION:-
= 0.056
(vii) 3.97 ÷ 10
SOLUTION:-
= 0.397
Q3. Find:
(i) 2.7 ÷ 100
SOLUTION:-
= 0.027
(ii) 0.3 ÷100
SOLUTION:-
= 0.003
(iv) 432.6 ÷100
SOLUTION:-
= 4.326
(v) 23.6 ÷ 100
SOLUTION:-
= 0.236
(vi) 98.53 ÷ 100
SOLUTION:-
= 0.9853
Q4. Find:
(i) 7.9 ÷1000
SOLUTION:-
= 0.0079
(ii) 26.3 ÷ 1000
SOLUTION:-
= 0.0263
(iii) 38.53 ÷ 1000
SOLUTION:-
= 0.03853
(iv) 128.9 ÷ 1000
SOLUTION:-
= 0.1289
(v) 0.5 ÷ 1000
SOLUTION:-
= 0.0005
Q5. Find:
(i) 7 ÷ 3.5
SOLUTION:-
= 2
(ii) 36 ÷ 0.2
SOLUTION:-
= 180
(iii) 3.25 ÷ 0.5
SOLUTION:-
= 6.5
(iv) 30.94 ÷ 0.7
SOLUTIOON:-
= 44.2
(v) 0.5 ÷ 0.25
SOLUTION:-
= 2
(vi) 7.75 ÷ 0.25
SOLUTION:-
= 31
(vii) 76.5 ÷ 0.15
SOLUTION:-
= 510
(viii) 37.8 ÷ 1.4
SOLUTION:-
= 27
(ix) 2.73 ÷ 1.3
SOLUTION:-
= 2.1
Q6. A vehicle covers a distance of 43.3 km in 2.4 liters of petrol . How much distance will it cover in liter of petrol ?
SOLUTION:-
From the question , it is the given that
Total distance covered by vehicle in 2.4 liters of petrol = 43.2 km
Then,
Distance covered in 1 liter of petrol = 43.2 ÷ 2.4
= (432/10) ÷(24/10)
= (432/10) x (10/24)
= (432x 10)/(10 x 24)
= (36 x 1) / (1 x 2)
= (18 x 1) /(1 x 1)
= 18 km
Total distance covered in 1 liter of petrol is 18 km.
NCERT Solutions for class 7 English Chapter 1 Three Questions