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First, find the height h using Pythagoras theorem: h = √(l² - r²) = √(20² - 15²) = √(400 - 225) = √175 = 5√7. Now, the volume V = (1/3)πr²h = (1/3)π(15²)(5√7) = (1/3)π(225)(5√7) = 375π√7 cm³. Correct answer : b) 992π cm³
41.5% of ? + 64.69% of 419.1 = 504.2
(88.931% of 435) + (61.521% of 516) = ?
3.992 + (3.01 × 2.98) + ? = 225.03
80.08% of 1250.25 + 64.02% of 1200 = 24.02 × 36.025 + ?% of 2259.98
(27.08)2 – (14.89)2 – (22.17)2 = ?
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.)...
? 3 + 95.06 X 39.87 ÷ 5.03 = 1271.89
17.98% of (16.93 X 8.992 + 46.87) = ? of 14.92 - 26.83 of 1.98
63.981 + 64.001 + 65.08019 + 63.11112 =?
?% of (150.31 ÷ 14.97 × 50.011) = 319.98
