9m
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d=n+8m
The answer is 27.
27 ft = 8.2296 m
1st term is 1 to the power of 1 = 1 2nd term is 2 to the power of 2 = 4 3rd term is 3 to the power of 3 = 27 4th term is 4 to the power of 4 = 256
13.5 days Rate of work for men = m Rate of work for children = c Therefore if we combine the rates: m + c = 1/9 Since rate = work-done/time Now m = 2c since rate of men is twice the rate of children Similarly, c = m/2 (rearranging the above) Equation becomes: m + m/2 = 1/9 3m/2 = 1/9 3m = 2/9 m = 2/27 This is the rate at which men work. For the men to complete the work, it will take x days. Rate = work/time Rate = work/x Work is 1 Rate is 2/27 2/27 = 1/x x = 27/2 x = 13.5