54. The synonym of the word "eradicate" is The word "eradicate" means to destroy completely or put an end to. • Eliminate means to completely remove or get rid of something. This is a direct synonym. • Deteriorate means to become progressively worse. • Criticise means to indicate the faults of someone or something. • Demand means an insistent request. The correct option is A. A) eliminate 55. Which of the following is not a South-east Asian nation Southeast Asia includes countries like Cambodia, Indonesia, Vietnam, Thailand, Malaysia, Singapore, Philippines, Myanmar, Laos, Brunei, and Timor-Leste. • Cambodia is a Southeast Asian nation. • Indonesia is a Southeast Asian nation. • Vietnam is a Southeast Asian nation. • Bhutan is a country located in South Asia, in the eastern Himalayas, not Southeast Asia. The correct option is D. D) Bhutan 56. If the cost price is 80% of the selling price, then what is the profit in percentage? Step 1: Define the relationship between Cost Price (CP) and Selling Price (SP). Let the Selling Price (SP) be $S$. Given that the Cost Price (CP) is 80% of the Selling Price: $$\text{CP} = 0.80 \times S$$ Step 2: Calculate the Profit. Profit is the difference between Selling Price and Cost Price: $$\text{Profit} = \text{SP} - \text{CP}$$ $$\text{Profit} = S - 0.80S$$ $$\text{Profit} = 0.20S$$ Step 3: Calculate the Profit Percentage. Profit Percentage is calculated with respect to the Cost Price: $$\text{Profit Percentage} = \left(\frac{\text{Profit}}{\text{CP}}\right) \times 100\%$$ $$\text{Profit Percentage} = \left(\frac{0.20S}{0.80S}\right) \times 100\%$$ $$\text{Profit Percentage} = \left(\frac{0.20}{0.80}\right) \times 100\%$$ $$\text{Profit Percentage} = \left(\frac{1}{4}\right) \times 100\%$$ $$\text{Profit Percentage} = 25\%$$ The correct option is B. $$\boxed{\text{B) 25%}}$$ 57. The Governor of Tamil Nadu is As of the current information, R. N. Ravi is the Governor of Tamil Nadu. The correct option is A. A) R. N. Ravi