Percentage distribution of production of six laptop models A–F in 2019 and 2020. Totals: 35 lakh (2019), 44 lakh (2020).
| Model | 2019 (%) | 2020 (%) |
|---|---|---|
| A | 30 | 40 |
| B | 15 | 20 |
| C | 20 | 15 |
| D | 10 | 10 |
| E | 15 | 10 |
| F | 10 | 5 |
What was the difference in the number of Model-B laptops produced in 2019 and 2020?
A3.55 lakh ✓ Correct
B2.70 lakh
C2.25 lakh
D1.75 lakh
Correct answer: (A) 3.55 lakh
Explanation
The answer is 3.55 lakh.
Model-B was 15 percent of 35 lakh in 2019, which is 5.25 lakh.
Model-B was 20 percent of 44 lakh in 2020, which is 8.8 lakh.
The difference is 8.8 minus 5.25.
That equals 3.55 lakh.
The other options do not match this value.
So the answer is 3.55 lakh.
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