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?
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Households that earn more than Rs 1,00,000 per year = 22%
Households that earn more than Rs 2,00,000 per year = 6%
So,
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
So, households that earn between Rs 1,00,000 and Rs 2,00,000 per year
= 16% = (16/100) × 1500 = 240
Households that earn more than Rs 2,00,000 per year = 6%
So,
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
So, households that earn between Rs 1,00,000 and Rs 2,00,000 per year
= 16% = (16/100) × 1500 = 240
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