In which one of the following countries are 75 per cent of seats in both Houses of Parliament filled oh the basis of first-past-the-post system and 25 per cent on the basis of Proportional Representation system of elections

In which one of the following countries are 75 per cent of seats in both Houses of Parliament filled oh the basis of first-past-the-post system and 25 per cent on the basis of Proportional Representation system of elections ?