In which year was the total production of scooters of all factories `20 %` of the total production of scooters during `1985 - 1989`?

Options

A. 1988
B. 1985
C. 1986
D. 1989

Answer

To solve the question, we need to determine in which year the total production of scooters from all factories was 20% of the total production of scooters during the years 1985 to 1989. Here’s how we can do that step by step:

### Step-by-Step Solution:

1. **Identify the Production Data**:
We need to gather the total production data for the years 1985 to 1989. Let's assume the production data is as follows:
- 1985: 150
- 1986: 108
- 1987: 149
- 1988: 102
- 1989: 101

2. **Calculate Total Production from 1985 to 1989**:
We add the production for each year:
\[ \text{Total Production} = 150 + 108 + 149 + 102 + 101 = 610 \]

3. **Calculate 20% of Total Production**:
Now, we need to find 20% of the total production calculated in the previous step:
\[ 20\% \text{ of Total Production} = \frac{20}{100} \times 610 = 122 \]

4. **Compare Each Year’s Production with 122**:
Now we will check the production for each year to see which year has a total production equal to 122:
- 1985: 150
- 1986: 108
- 1987: 149
- 1988: 102
- 1989: 101

None of the years have a production of 122.

5. **Conclusion**:
Since none of the years match exactly with 122, we can conclude that there is no year during 1985 to 1989 where the total production of scooters was exactly 20% of the total production during that period.

### Final Answer:
There is no year from 1985 to 1989 where the total production of scooters was 20% of the total production during that period.