CRE 6 - Bubble Charts | DI - Tables & Graphs

Answer: Option B

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Explanation :

It is given that area of each bubble is directly proportional to the municipality budget of the city.

∴ By simple observation we can say that the biggest bubble will have the highest municipality budget.

⇒ City B will have the highest municipality budget.

Hence, option (b).

Answer: Option B

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Explanation :

Population density for city A = 30,00,000 / 4000 = 750 people / km²

Hence, option (b).

Answer: Option D

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Explanation :

It is given that area of each bubble is directly proportional to the municipality budget of the city.

⇒ budget ∝ area ∝ r².

∴ Budget is directly proportional to square of the radius of the bubble.

Since, radius of bubble B is twice the radius of bubble B ⇒ municipality budget for B will be 2² = 4 times the municipality budget for A.

∴ Municipality budget for city B = 4 × 500 = 2000 crores.

Hence, option (d).

Answer: Option C

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Explanation :

It is given that area of each bubble is directly proportional to the municipality budget of the city.

⇒ budget ∝ area ∝ r².

∴ Budget is directly proportional to square of the radius of the bubble.

Ratio of radius of bubble C and D = 1 : 2

⇒ Ratio of municipality budget for city C and D = 1² : 2² = 1 : 4.

Hence, option (c).

Answer: Option D

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Explanation :

Here, ratio of municipality budget for city A : B : C : D = 4 : 16 : 1 : 4.

∴ Let the budget for city A = 4x, B = 16x, C = x and D = 4x.

Budget per capita = Budget/Population

Budget per capita for city A = 4x/3 = 1.33x

Budget per capita for city B = 16x/7 = 2.28x

Budget per capita for city C = x/1.5 = 0.66x

Budget per capita for city D = 4x/9 = 0.44x

⇒ The budget per capita is least for city D.

Hence, option (d).