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Solution
Number of cars in State-1 = 14% of 700 = (14/100) × 700 = 98
Number of petrol engine cars in State-1 = (4/(3 + 4)) × 98 = (4/7) × 98 = 56
Number of cars in State-2 = 28% of 700 = (28/100) × 700 = 196
Number of petrol engine cars in State-2 = (9/(5 + 9)) × 196 = (9/14) × 196 = 126
Number of cars...
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