Question
The volume of a hemisphere is 2425 (1/ 2)
cm3. Find its diameter (Take p = 22/7)Solution
Let the radius of the hemisphere be R (2/3) x (22/7) × R3 = 2425.5 (2/3) × (22/7) x R³ = (4851/2) (2/3) × (22/7) x R³ = (99 x 49)/2 R³ = (3 x 3 x 11 × 7 × 7 × 3 × 7)/ (2 x 2 x 2 x 11) R³ = (3 × 3 × 3 × 7 × 7 × 7)/ (2 x 2 x 2) R = (3 x 7)/2 R = 10.5 cm. 2R=21cm The radius of the hemisphere is 21cm cm
?% of (168 ÷ 8 × 20) = 126
20% of 1500 – 75% of 200 = 125% of ?
Find the value of 16 X [(8 - 5) of 12 ÷ 4].
√196 + (0.25 × 144) + 19 = ? + 72
22 * 6 + 45% of 90 + 65% of 180 = ?
52% of 400 + √(?) = 60% of 600 - 25% of 400
(25 × 12 + 30 × 8 – 22 × 10) = ?
What will come in the place of question mark (?) in the given expression?
(240% of 175 ÷ √16) X 6 + 80% of 400 = ?3 + 179 + 42
What will come in the place of question mark (?) in the given expression?
(144 × 16 ÷ 12) × 6 = ?
808 ÷ (128)1/7 + 482 = 4 × ? + 846
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