A: The correct answer is: 990. Let’s think step by
step. Tina works 10 hours per day for 5 days, so she
works 10*5 = 50 hours. She is eligible for overtime
after 8 hours per shift, so she works 50-8 = «50-
8=42»42 hours of overtime. She makes $18.00 per
hour, so she makes 18*42 = 756 dollars of overtime
pay. Overtime pay is her hourly wage + 1/2 her
hourly wage, so she makes 18+(18/2) = $27.00 per
hour of overtime. She works 42 hours of overtime,
so she makes 27*42 = 1134 dollars of overtime pay.
She makes $18.00 per hour for her regular hours,
so she makes 18*8 = «18*8=144»144 dollars of
regular pay. She makes a total of 144+1134 = 1278
dollars. (cid:55) Therefore, the correct answer is: 990. (cid:52)

Table 4: This is an example of Iter-CoT compared to Star-CoT on GSM8K.

(a) GSM8K

(b) CSQA

(c) Letter

Figure 6: Average length of reasoning chains generated by different methods on GSM8K, CSQA and
Last Letter Concatation.
Enhancing Chain-of-Thoughts Prompting with Iterative Bootstrapping in Large Language Models