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Question: the table given below provides the number of households in...
Question details
The table given below provides the number of households in a country during the period 1970 to 1990. The pie-chart gives the distribution of households based on the number of children for the years 1970 and 1990. 
| Year | No. of households (millions) |
| 1970 | 120 |
| 1972 | 123 |
| 1974 | 126 |
| 1976 | 129 |
| 1978 | 132 |
| 1980 | 135 |
| 1982 | 140 |
| 1984 | 145 |
| 1986 | 150 |
| 1988 | 155 |
| 1990 | 160 |
Ex.1 How many households were without any children in 1990 if it is given that the average number of children per household in 1990 was 3?
1. 24 million
2. 64 million
3. 14 million
4. Cannot be determined
Ex.2 According to the above pie graphs, In 1970 the average number of children per household in 1970 was
1. 1.18
2. 1.35
3. 2.0
4. Cannot be determined
Solution by an expert tutor
