At half depth, both height and radius of the water cone are half the cup’s dimensions. Since volume scales with the cube of dimensions, the water occupies (1/2)³ = 1/8 of the cup’s total volume. Cbse Class 9 Maths Ganita Manjari ...
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Letting bat cost ₹x and ball ₹y gives 7x + 6y = 8880 and 3x + 5y = 4000. Multiplying and eliminating yields 17x = 20400, so x = 1200 and y = 80. A bat costs ₹1200, a ball ...
The shaded fraction is 1/5. The parallel lines connecting vertices and opposite midpoints are perpendicular, dividing the square into five congruent smaller squares by geometric dissection, making the central shaded square exactly one-fifth of the total area. Class 9 Maths Ganita ...
(ii) No for 100 and 1; yes for 10. The fourth side x satisfies 11 – (5 + 2) < x < 11 + 5 + 2, meaning 4 < x < 18. (iii) Each side must be strictly less ...
Using CSA = πrl = 308, (22/7) × r × 14 = 308 gives base radius r = 7 cm. Total surface area is πrl + πr² = 308 + (22/7) × 7² = 308 + 154 = 462 cm². Ganita ...