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Let radius and height of each cylinder be ‘r’ cm. So, radius of sphere = 4r cm Volume of sphere = 81 × volume of each cylinder => (4/3)π(3r)3 = 81 × π × r2 × 4 => 9r = 81 => r = 9 So, required radius = 3r = 27 cm
?= √(4 × ∛(16 × √(4 × ∛(16 ×…… ∝)) ) )
√10000 x √8100 - (50)² = √(?) + (80)²
25% of (?) + (1/4)of 5600 = 2500 – 20% of 1940
702 + 26 + 142 - 20% of 310 = ? - 15% of 420
√0.49 + √6.25 + √1.44 + √1.21 =? % of 125
5(? + 2) = 3125
118 × 6 + 13 + 83 = ?
56 x 8 – 65% of 40 = ? + 14 x √625
? = 15% of 2400 + 140% of 4200 – 12 3
