The area of a circle is 38.5 cm2. Find its circumference (in cm).
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The radius of a hemisphere is 21 cm, what is its volume? (Take π = 22/7)
The average of ten numbers is 18. If one number is removed, then the average becomes 16, then what is the removed number?
Select the odd word/letters/number/number pair from the given alternatives.
If the difference between the roots of the equation Ax2 – Bx + C = 0 is 4, then which of the following is TRUE?
A box contain equal number of 1 rupee, 2 rupee and 5 rupee coins. If the total amount is Rs 184, then how many coins of each type are there?
If 9x = 24311, then what is the value of x?
If x = 5 + 15 - 1 & y = 5 - 15 + 1 , then find the value of x2 - y2.