Unknown Weights – Fig 7.4 to 7.8

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Unknown Weights – Fig 7.4 to 7.8Find unknown weight – Fig 7.4 Since scale is balanced Left weight = Right Weight = 𝟏𝟖/𝟐 = 9 Thus, Sun + 4 × Cloud = 9 Putting Sun = 5 5 + 4 × Cloud = 9 4 × Cloud = 9 – 5 4 × Cloud = 4 Cloud = 4/4 Cloud = 1 Also, 3 × Lightning = 9 Lightning = 9/3 Lightning = 3 Also, 3 × Lightning = 9 Lightning = 9/3 Lightning = 3 Find unknown weight – Fig 7.5 Since scale is balanced Left weight = Right Weight = 𝟒𝟎/𝟐 = 20 Thus, 4 × Crown = 20 Crown = 20/4 Crown = 5 Also, Crown + 5 × Blue stone = 20 Putting Crown = 5 5 + 5 × Blue stone = 20 5 × Blue stone = 20 – 5 5 × Blue stone = 15 Blue stone = 15/5 Blue stone = 3 Find unknown weight – Fig 7.6 Since scale is balanced Left weight = Right Weight = 𝟏𝟖/𝟐 = 9 Thus, Sun + 4 × Cloud = 9 Putting Sun = 5 5 + 4 × Cloud = 9 4 × Cloud = 9 – 5 4 × Cloud = 4 Cloud = 4/4 Cloud = 1 Also, 3 × Lightning = 9 Lightning = 9/3 Lightning = 3 Also, Crown + 5 × Blue stone = 20 Putting Crown = 5 5 + 5 × Blue stone = 20 5 × Blue stone = 20 – 5 5 × Blue stone = 15 Blue stone = 15/5 Blue stone = 3 Find unknown weight – Fig 7.6 Here, the main reading is not given But the scale is balanced So, we can write Left weight = Right Weight Putting values 3 × Bread = 2 × Egg Putting Bread = 2 3 × 2 = 2 × Egg 6 = 2 × Egg 2 × Egg = 6 Egg = 6/2 Egg = 3 Left weight = Right Weight Putting values 3 × Bread = 2 × Egg Putting Bread = 2 3 × 2 = 2 × Egg 6 = 2 × Egg 2 × Egg = 6 Egg = 6/2 Egg = 3 Find unknown weight – Fig 7.7 Here, the main reading is not given But the scale is balanced So, we can write Left weight = Right Weight Putting values 4 × Cross = 2 × Donut + Cross Putting Cross = 4 4 × 4 = 2 × Donut + 4 16 = 2 × Donut + 4 2 × Donut + 4 = 16 2 × Donut = 16 – 4 2 × Donut = 12 Donut = 12/2 Donut = 6 Find unknown weight – Fig 7.8 Here, the main reading is not given But the scale is balanced So, we can write Left weight = Right Weight Putting values 4 × Cross = 2 × Donut + Cross Putting Cross = 4 4 × 4 = 2 × Donut + 4 16 = 2 × Donut + 4 2 × Donut + 4 = 16 2 × Donut = 16 – 4 2 × Donut = 12 Donut = 12/2 Donut = 6 Donut = 12/2 Donut = 6 Find unknown weight – Fig 7.8 Here, the main reading is not given But the scale is balanced So, we can write Left weight = Right Weight Putting values Watermelon = 2 × Banana + Orange Putting Watermelon = 10, Orange = 4 10 = 2 × Banana + 4 10 = 2 × Banana + 4 2 × Banana + 4 = 10 2 × Banana = 10 – 4 2 × Banana = 6 Banana = 6/2 Banana = 3