Question
A cone has a base radius of 7 cm and a slant height of
25 cm. Find the total surface area of the cone.Solution
Total surface area of a cone = π * r * (r + l), where r = radius and l = slant height. Given r = 7 cm and l = 25 cm. Total surface area = π * 7 * (7 + 25) = 22 * 32 = 704 cm². = 704 cm². Answer: d) 704 cm².
99% of 4444 + 101% of 6666 =
Find the approximate value of Question mark(?). No need to find the exact value.
(519.79 ÷ 10.03) × (47.98 ÷ 6) + √(63.94) × 4.04 = ?
...1299.99 ÷ 20.21 = ? + 325.985 - (180 ÷ 6 × 24.03)
What approximate value will come in place of question (?) in the following given expression? You are not expected to calculate the exact value.
...- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.) 
 9.95% of 1299.99 + 19.95 × 17.05 - 299.99 = ?
? = 26.08 + 18.99 × 25.07
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.) 
 (√360.99 + 161.14) ÷ 5 × 249.98 = ?
24.75% of 20.125% of 30.05% of 2196.06 = ?