12% earn less than ₹ 30,000.
6% earn more than ₹ 2,00,000.
22% earn more than ₹ 1,00,000.
So, between ₹ 30,000 – ₹ 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×=240