In a prison camp, 100 soldiers have been given provisions good only for 10 days. If five soldiers die every day, except on the first day, in how many days will the provisions last? A. 15 C. 25 B. 16 D. 20 Click here to expand or… Jhun Vert Sat, 07/06/2024 - 21:34 Click here to expand or collapse this section Volume of provisions = 100(10) = 1000 man-days Daily consumption = 100, 95, 90, ... ← AP Sum of Arithmetic Progression, AP $\frac{1}{2}n[ \, 2a_1 + (n - 1)d \, ] = S$ $\frac{1}{2}n[ \, 2(100) + (n - 1)(-5)] \, ] = 1000$ $n = 16$ Log in or register to post comments Log in or register to post comments
Click here to expand or… Jhun Vert Sat, 07/06/2024 - 21:34 Click here to expand or collapse this section Volume of provisions = 100(10) = 1000 man-days Daily consumption = 100, 95, 90, ... ← AP Sum of Arithmetic Progression, AP $\frac{1}{2}n[ \, 2a_1 + (n - 1)d \, ] = S$ $\frac{1}{2}n[ \, 2(100) + (n - 1)(-5)] \, ] = 1000$ $n = 16$ Log in or register to post comments
Click here to expand or…