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In a city,12% of households earn less than Rs. 30,000 per year,6% households earn more than Rs.2,00,000 per year, 22% households earn more than Rs.1,00,000 per year and 990 households earn between Rs.30,000 and Rs.1,00,000 per year. How many households earn between Rs.1,00,000 and Rs.2,00,000 per year? 

(a) 250 

(b) 240 

(c) 230 

(d) 225

1 Answer

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Best answer

Correct option (b) 240

Explanation:

According to the question:Households that earn more than Rs1,00,000 per year =22% and households that earn more than Rs 2,00,000 per year = 6% 

Hence, households that earn between Rs 1,00,000 and Rs 2,00,000 per year = 22 – 6 = 16% 

Now, Households that earn less than Rs. 30,000 per year = 12% 

Households that earn between Rs 30,000 and Rs 1,00,000 per year = 100 – (22 + 12) = 66% = 990 

So, 100% = 990 × (100/66) = 1500 

Hence, households that earn between Rs 1,00,000 and Rs 2,00,000 per year = 16% = (16/100) × 1500 = 240

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