Multiple choice

Quantity A The time taken to fill a tank using two pipes, one filling at 3 liters per minute and the other at 5 liters per minute, when the tank capacity is 120 liters Quantity B 20 minutes

  1. Quantity A is greater.

  2. Quantity B is greater.

  3. The two quantities are equal.

  4. The relationship cannot be determined from the information given.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Quantity A: Combined rate = 3 + 5 = 8 liters/min. Time = 120 / 8 = 15 minutes. Quantity B = 20 minutes. Since 15 < 20, Quantity B is greater.

AI explanation

The combined rate of the two pipes is 3 + 5 = 8 liters per minute. Using the formula time equals total capacity divided by combined rate, the time taken to fill the tank is 120 / 8 = 15 minutes. Since 15 minutes is less than 20 minutes, Quantity B is greater.

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