Answer:
Plug this in a calculator and the answer will pop up.
Step-by-step explanation:
12 men working 8 hours a day complete a piece of work in 10 days to complete a the same work in 8 days working 15 hours a days t
1 answer:
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Answer:
a=15
Step-by-step explanation:
By pythagoras' theorem
25²=20²+a²
625=400+a² group like terms
a²=625-400
a²=225
therefore a=15