Area of the octagon = 2 (side)² (√2 +1) Now, Area of the octagon = 2 (20)² (√2 +1) = 2 × 400 × 2.41 = 1928 cm²
Let p be a prime number. Then √p is:
When N is divisible by 5 the remainder is 2. What is the remainder, when n³ is divided by 5?
The difference of 
and its r...
Two friends, P and Q, each have the same amount saved. Q manages to save one-fourth of his income, while P saves one-third of his. Given that P spends R...
If a number is decreased by 8 and divided by 12, the result is 16. What would be the result if 10 is subtracted from the number and then it is divided ...
Find the fourth proportional of 12, 24, and 30.
27 percent of a number exceeds 13 percent of the same number by 56. What is the value of the number?
How many 100 digit positive numbers are there?
Identify the number that, when subtracted by its square root, results in a difference of 42.
Find the number of factors of 80?
