Find the greatest number by which 90,120 and 150 are exactly divisible

30

Step-by-step explanation:

Prime factors of 90=2 x 3^2 x 5

Prime factors of 120=2^3 x 3 x 5

Prime factors of 150=2 x 3 x 5^2

Common prime factors with lowest exponent: 2, 3, 5

HCF(highest common factor) = 2 x 3 x 5 = 30

30

Step-by-step explanation:

30 is divisible by 90, 120 and 150

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!