mhw qs

A group of  men was employed to shift 545 crates. Every day after the first, 6 more men than the previous day were put on the job. Also, every day after the first, each men working, shifted 5 fewer crates than the number of crates moved by each man the previous day. The result was that during the latter part of the period, the number of crates shifted per day began to go down 5 days were required to finish the work.

Q1. What was the number of crates shifted on the third day?
a. 137
b. 169
c. 26
d. 152

Q2. What was the number of men working on the fifth day?
a. 13
b. 25
c. 19
d. 75

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