Interview Maths Puzzle Numerical Ability LCM and HCF

What is the LCM of 147/64 and 30/44?

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Interview Other Question

a big cube is made of 125 small cubes of 1*1*1 cms dimensions. if we cut this big cube on its diagonal how many small cubes gets cut on it ? Linda wants to drain the water out of an open top 55 gallon rain barrel. She has the choice of using either a 2-inch diameter hose, two 1-inch diameter hoses or 4 1/2 inch diameter hoses.
Which hose size will drain the barrel faster? Will they drain equally as fast?