The area of a circle is 616 sq.m. Find its diameter.
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A square ground is to be covered by planting 100 saplings on each side. How many saplings are needed in all?
The mean of a distribution is 15 and the standard deviation is 5. What is the value of the coefficient variation?
The compound interest earned in two years at 12% per annum is Rs 10176. What is the sum (in Rs) invested?
A sum of Rs 10000 becomes Rs 14641 when invested at compound interest at the yearly interest rate of 20% per annum. If the compounding is done half yearly, then for how many years was the sum invested?
Which one of the following is an irrational number?
The LCM of 56, 84 and 112 is
If 9x2 + 16y2 = 60 and 3x + 4y = 6, then the value of xy is
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