Question

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

(a) 250

(b) 240

(c) 230

(d) 225

Answer 1

Correct option is (b) 240

12% earn less than ₹30,000.

6% earn more than ₹2,00,000.

22% earn more than ₹1,00,000.

So, between ₹30000 - ₹1,00,000 there are

(100 - 22 - 12)% = 66% household.

66% household is equal to 990

Hence, Number of household = 1500 .

Number of household between 1,00,000 and 2,00,000 

= 1500 x 16/400

= 240