Q4 : Do as directed.
1. Convert 2345 m to km and express the result as mixed fraction.
2. Write 0.05 in the lowest terms.
3. Subtract : rupees 18.25 from rupees 20.75
4. Find the area of square garden with side 30 m.
5. Find the perimeter of a square with side 12 m.
6. The weight of 72 books is 9 kg . What is the weight of 40 such books.
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1. We know that
1 km=1000 m
⇒1 m= 1/1000 km
⇒2345m = 1/ 1000 × 2345 km
⇒2345m = 2345/1000 km
= 397/200km
2. 0.05 as a fraction is written as 1/20.
3. 18.25 - 20.75 = -2.5
4. Area = 900m²
5. perimeter = 12 + 12 + 12 + 12 = 48
6. The weight of 72 books =9kg
the weight of 1 book= 0.125kg
the weight of 40 books = 5 kg
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