If `A={5,2,3,4}` then find `n(A)`

If mu ={1,2,3,4,5,6,7,8) and A={2,5,8} then find n(A)

If m/n =5/2 then find values (3m+4n)/(3m-4n)

If m:n=3:2, then find the ratio (4m+5m):(5m-5n)

If m:n=5:4 , then find the value of the ratio (5m+3n):(3m+n)

If 2^(n+4)-2^(n+2)=3 Then find n

(1) If 5^(n+2)=625, find [(n+3)]^((1)/(3)):(2) If ((32)/(243))^(n)=(8)/(27), find ((n+0.4)/(1024))^(-n)

(a) If N_(k)={kn:n inN} , find N_(3)capN_(5)andN_(4)capN_(6) . (b) If N_(a)=(an: n inN}, describe N_(4)capN_(6)andN_(3)capN_(5) .

If n=2^3xx3^4xx5^4xx7 , where n is a natural number, then find the number of consecutive zeros in n