Q1.Find:
(i) 0.2 × 6 = 1.2
(ii) 8 × 4.6 = 36.8
(iii) 2.71 × 5 = 13.55
(iv) 20.1 × 4 = 80.4
(v) 0.05 × 7 = 0.35
(vi) 211.02 × 4 = 844.08
(vii) 2 × 0.86 = 1.72
Q2. Find the area of rectangle whose length is 5.7cm and breadth is 3 cm.
Solution:-
Q2. Find the area of rectangle whose length is 5.7cm and breadth is 3 cm.
Solution:-
Breadth of the rectangle = 3 cm
Area of the rectangle = length × Breadth = 5.7 × 3 = 17.1 cm\(^2\)
Q3. Find:
(i) 1.3 × 10= 13
Q4. A two-wheeler covers a distance of 55.3 km in one litre of petrol. How much distance will it cover in 10 litres of petrol?
Solution:-
(i) 1.3 × 10= 13
(ii) 36.8 × 10 = 368
(iii) 153.7 × 10 = 1537
(iv) 168.07 × 10 = 1680.7
(v) 31.1 × 100 = 3110
(vi) 156.1 × 100 = 15610
(vii) 3.62 × 100 = 362
(viii) 43.07 × 100 = 4307
(ix) 0.5 × 10 = 5
(x) 0.08 × 10 = 0.8
(xi) 0.9 × 100 = 90
(xii) 0.03 × 1000 = 30
Solution:-
Distance covered by two-wheeler in 1L of petrol = 55.3 km
Distance covered by two wheeler in 10L of petrol = (10 × 55.3) = 553 km
∴Two-wheeler covers a distance in 10L of petrol is 553 km.
Q5. Find:
(i) 2.5 × 0.3 = 0.75
(i) 2.5 × 0.3 = 0.75
(ii) 0.1 × 51.7= 5.17
(iii) 0.2 × 316.8= 63.36
(iv) 1.3 × 3.1= 4.03
(v) 0.5 × 0.05= 0.025
(vi) 11.2 × 0.15= 1.680
(vii) 1.07 × 0.02= 0.0214
(viii) 10.05 × 1.05 = 10.5525
(ix) 101.01 × 0.01= 1.0101
(x) 100.01 × 1.1= 110.011
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