For the following questions answer them individually
If the average of five observations $$a_1, a_2, a_3, a_4 and a_5$$ is N, then what is the average of five new observations $$a_1 - 100, a_2 - 100, a_3 - 100, a_4 - 100, and a_5 - 100$$?
If the length of the diagonal of a square is $$10\sqrt{2}Â cm$$, then what will be area of the square?
Rajesh goes to his office at the speed of 25 km/hr and returns to his home at the speed of 20 km/hr. If he takes total 9 hours, then what is the distance between his office and home?
A sum becomes ₹ 10650 in 5 years and ₹ 11076 in 6 years at simple interest. What is the sum?
If cost price of an article is ₹220 and profit is 20%, then what will be the selling price of the article?
The height of a cone is 16 cm and radius of its base is 30 cm.If the rate of painting it is ₹14/cm$$^2$$, then what will be the total cost in painting the curved surface of cone from outside?
A sum becomes 5 times of itself in 3 years at compound interest (interest is compounded annually). In how many years will the sum becomes 125 times of itself?
A alone can complete a work in 6 days and B alone can complete the same work in 8 days. In how many days both A and B together can complete the same work?
The length, breadth and height of a room is 21 metres, 12 metres and 16 metres. What will be the length of the largest rod that can be placed in that room?
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