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For The Mathematically Inclined

Anil Saigal
08/27/2020

Problem 1:

What is the weight of a solid brick wall that is 30 cm wide, 4 m long and 2 m high? The density of the brick is 1500 kg per cubic meter.


Problem 2:
What is the weight of a brass ball with an outer radius of 12 cm, a wall thickness of 20 mm if the density of the brass is 8.5 g/cm3.


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Problems from M-08/13/20

Problem 1:
There are two leaders in the tourist group, with an average age of 30 years and several children with an average age of 10 years. The total age of the group is 12 years. How many children are in the group?


Problem 2:
A survey carried out at a certain hospital indicates that the probability that a patient tested positive for malaria is 0.8. What is the probability that two patients selected at random one is negative and other is positive?

Congratulations Nilesh Agarwal.



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