24 x 7 = 168
This is a calculator problem, but easily solved
if you see that 20 x 7 = 140 and 4 x 7 = 28.
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7 x 24 = 168
Reverse the flow from the answer: (((((56 / 7) + 7) x 5) - 3) / 3) = ? 56 / 7 = 8 + 7 = 15 x 5 = 75 - 3 = 72 / 3 = 24 Check the Answer: (((((24 x 3) + 3) / 5) - 7) x 7) = 56 24 x 3 = 72 + 3 = 75 / 5 = 15 - 7 = 8 x 7 = 56 Answer: 24
(5 x 3) - 7 = 8 X 3 = 24
Another method is: (56 ÷ 7) × 3 = 24
A week is 7 days (7 x 24 hr). 42 hr = (7 x 6) hr. So the fraction is:7 x 6-------7 x 24This is the same as 6/24 = 1/4