The mass of rice in Bag B was 0.25 the mass of rice in Bag A of first. After 105 kg of the rice in Bag A and 20 kg 300 g of rice in Bag B was used, the mass of rice in Bag A was 1/2 the mass of rice in Bag B?
(a) How much rice was left in Bag 8 at the end?
(b) What was the total mass of rice in Bag A and Bag B at first?
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a = 4b
2(a-105) = b-20.3
a = 108.4 and b=27.1
(a) b had 27.1 - 20.3 = 6.8
(b) a+b = 135.5
(a) At the end, Bag B had 20 kg 300 g of rice left.
(b) At first, Bag A had 105 kg of rice and Bag B had 0.25 x 105 kg = 26.25 kg of rice.
Therefore, the total mass of rice in Bag A and Bag B at first was 105 kg + 26.25 kg = 131.25 kg.