Question

please tell me the answer of this question
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Answer 1

Answer:

See the attchment below ... i hope it will help

Step-by-step explanation:

Answer 2

Answer:

vol of 27 spheres = vol of big sphere

Sr/3 × 27 = S'r'

9Sr = S'r'

r' = 9Sr/S'

S/S' = r'/9r

S : S'  =  r' : 9r

hope its helpful..........