exam Maths Puzzle Numerical Ability

Suppose it will rain on any given day eith the probability of 0.34, independent of everything. What is the probability that of three consecutive days it will rain on the first two and not rain on the third?

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5.Sheet Metal Trades: How many square inches of sheet metal are used to make the vent transition shown? (The ends are open.) One side is 7by 7", the other is 9" by 9", and 12" leng tan 11pi/6