The correct answers are 1) Interest rates increase, 4) Uncertainty increases, and 5) Real income declines.
<em>The effects of rapid inflation are interest rates increase, uncertainty increases, and real income declines.</em>
A rapid increase in inflation can damage the country's economy and can create social problems. Low-income people are going to find more expensive products on the market. Real income is going to fall. Real interest rates are going to be negative. Higher borrowing costs for people and businesses. Uncertainty in the market and companies. They would be more cautious when investing their money.