This system has no solution. Here, a₁/a₂ = 1/3 and b₁/b₂ = -1/(-3) = 1/3, but c₁/c₂ = -8/(-16) = 1/2. Because the lines are parallel, they never intersect. Cbse released Class 9 Ganita Manjari Part 2 book Chapter 13 Two ...
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The smallest enclosing cylinder for a sphere of radius r has base radius r and height 2r, with volume 2πr³. The sphere volume is (4/3)πr³, exactly two-thirds of the cylinder’s volume. Class 9 Ganita Manjari Part 2 book Chapter 14 Question ...
Option (A) has a volume of 50³ = 125,000 mm³. Option (B) has 100 × 10³ = 100,000 mm³. Since 125,000 mm³ is greater than 100,000 mm³, Option (A) gives more chocolate. Class 9 Ganita Manjari part 2 Chapter 14 end ...
A 72.8% volume increase gives a factor of 1.728. Since volume scales cubically with radius, the new radius factor is ∛1.728 = 1.2. This represents a 20% increase, so x = 20. Cbse Class 9 Maths Ganita Manjari Part 2 Solutions
Let the numbers be x and y with x > y. The equations are x – y = 26 and x = 3y. Substituting gives 3y – y = 26, so 2y = 26, y = 13 and x = ...