Three squads, each with five soldiers, complete a drill in 12 minutes. If six squads perform the same drill under even workload, how many minutes will it take?

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Multiple Choice

Three squads, each with five soldiers, complete a drill in 12 minutes. If six squads perform the same drill under even workload, how many minutes will it take?

Explanation:
The concept is how work rate scales with the number of workers. The drill’s total work is fixed, and each soldier contributes at a steady rate, so doubling the number of soldiers doubles the overall rate. With 15 soldiers, the drill takes 12 minutes, so the total work is 15 × 12 units. If there are 30 soldiers, the combined rate is twice as high, so the time to complete the same total work is halved: 12 ÷ 2 = 6 minutes. Therefore, it would take 6 minutes.

The concept is how work rate scales with the number of workers. The drill’s total work is fixed, and each soldier contributes at a steady rate, so doubling the number of soldiers doubles the overall rate.

With 15 soldiers, the drill takes 12 minutes, so the total work is 15 × 12 units. If there are 30 soldiers, the combined rate is twice as high, so the time to complete the same total work is halved: 12 ÷ 2 = 6 minutes.

Therefore, it would take 6 minutes.

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