Accenture Company Numerical Ability Area and Volume

A rectangular tank 10" by 9" by 6" is filled with water. If all of the water is to be transferred to cube-shaped tanks, each one 3 inches on a side, how many of these smaller tanks are needed?
A) 20 B) 24 C) 16 D) 30 E) 18

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Accenture Other Question
Two identical taps fill 2/5 of a tank in 20 minutes. Now one of the taps goes dry, then in how many minutes will the remaining one tap fill the rest of the tank ?
A) 75 B) 40 C) 45 D) 50 E) None of these The proportion of milk and water in three samples is 3:2, 7:5 and 5:3. A mixture comprising of equal quantities of all three samples is made. The proportion of milk and water in the mixture is
A) 197:163 B) 7:4 C) 99:61 D) 217:143