Problem: the fuel indicator in a car shows 1 / 5 th of the fuel tank as full . when 22 more liters of fuel are poured in to the tank , the indicator rests at the 3 / 4 of the full mark . find the capacity of the tank .
Rationale: x / 5 + 22 = 3 x / 4 = > x = 40 litres answer : d
annotated_formula: divide(22, subtract(divide(3, 4), divide(1, 5)))