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Answer:
Shanti = 106.25 kg
Kanta = 85 kg
Step-by-step explanation:
let Shanti's weight = x
then, Kanta's weight is 4/5x because it's 4/5 of shanti's weight
then, Suneeta's weight = 3/5(4/5x) ---- (1)
Suneeta's weight is already given
from eq. 1
3/5(4/5x) = 51
12/25x = 51
x = 51×25/12
x = 106.25
Now, Shanti's weight is 106.25 kg
Kanta's weight is 4/5 × 106.25 = 85 kg