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Step-by-step explanation:
3) 5 1/3 ÷ 8
= 16/3 ÷ 8
= 16/3 × 1/8
= 2/3 of milk .
4) Weight of 7 identical books = 6 2/9kg = 56/9kg.
Weight of 1 book = 56/9kg ÷ 7 = 56/9kg ×1/7 = 8/9 kg.
5) The cost of 5 2/5 litres of milk = rs.101 1/4.= rs. 405/ 4
The cost of 1 litre of milk = rs.405/4 ÷ 5 2/5 = rs. 405/4 ÷ 27/5 = rs. 405/4 × 5/27 =
rs.18.75
6) The cost of 5 3/4 kg of mangoes = rs. 184
The cost of 1 kg of mangoes = rs. 184 ÷ 5 3/4 = rs. 184 ÷ 23/4 = rs. 184 × 4/23 = rs.32
7) 4 1/8 kg of flour was used to baking of cakes = 11
1 kg of flour was used to baking 1 cake = 11 ÷ 4 1/8 = 11 ÷ 33/8 = 11 × 8/33 = 8/3kg
8) A roll of cloth measure = 60 m.
Required to stritch a shirt of cloth = 2 1/2 m = 5/2m
Total Required of cloth by using shirts = 60 ÷ 5/2 = 60 × 2/5 = 24
9) Length of the rectangular field = l = 18 1/2 m = 37/2m.
Area of the rectangular field = 286 3/4 sq.m = 1147/4 sq.m
Therefore, l × b = 1147/4
37/2 × b = 1147/4
b = 1147/4 × 2/37 = 15.5m
Breadth of the rectangular field = b = 15.5 m
10) A group of students collected money = rs. 5272 1/2 = rs. 10545/ 2£63