If log v + log 3 = log π + log 4 + 3 log r, the value of v in terms of r and other constants is : 1. 4/3πr^3 2. 4πr^2 3. πr^3 4. 4/3πr^2

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If log y + 2 log x = 2, the value of y in terms of x is :
x² ÷ 100
100 ÷ x²
x ÷ 10
10 ÷ x