Question

Mother, daughter and infant total weight is 74 kg. Mother's weight is 46 kg more than daughter and infant's weight. Infant's weight is 60% less than daughter's weight. Find daughter's weight?

Answer 1

Answer:

10 kg - Daughter Weight

Step-by-step explanation:

Mother, daughter and infant total weight is 74 kg. Mother's weight is 46 kg more than daughter and infant's weight. Infant's weight is 60% less than daughter's weight. Find daughter's weight?

Let say Daughter Weight = D kg

Infant Weight = D - (60/100)D  = 0.4D  kg

Mother''s Weight = D + 0.4D + 46 = 1.4D + 46  kg

Total Weight = D + 1.4D + 46 + 0.4D  = 2.8D + 46 kg

2.8D + 46 = 74

=> 2.8D = 28

=> D = 10

Daughter Weight = 10 kg