Calculate the principal if an amount of Rs. 441 is received on compound interest at the rate of 5% per annum after 2 years.
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The standard deviation of the set {10, 11, 12, 9, 8} is
In the following question, select the odd word pair from the given alternatives.
The sum of the parallel sides of a trapezium is 12.4 cm. If the distance between the parallel sides is 3.5 cm, what is the area of this trapezium?
The difference between Peter and Preeti's ages is 5 years. When they married each other 35 years ago, 4 times Peter's age was the same as 5 times the age of Preeti. What is the current sum of their ages?
What is the average of first 19 odd numbers?
If curved surface area of a cylinder is 616 sq cm and height is 14 cm, find its radius?
A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?