15 m is the answer of your questions
• In the given question information given about a man observes the angle of elevation of tower is 30° after advancing 11 m towards it he observes that the angle of elevation is 45°.
• We have to Find the height of tower.
• According to given question :
answer: 48 computers.
a team takes an hour to assemble 12 computers.
∴ the number of computers that the team can assemble in 4 hours is (12 computers × 4 hours) 12*4= 48 computers.
the total number of computers that can be assembled in 4 hours by the team of workers is 48 computers.
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