Complete Inorganic last 10 years pyqs

The following data shows the rainfall in Bhopal for the last 10 years. If we consider rainfall for the last 7 years, then which of the following statements is true?

The ratio of the prices of two houses A and B was 4 : 5 last year. This year, the price of A is increased by 25% and that of B by ' 50000. If their prices are now in the ratio 9 : 10, the price of A last year was :

Complete the last column of the table

The probability that certain electronic component fail, when first used is 0.10. If it does not fail immediately, then the probability that it lasts for one year is 0.99. What is the probability that a new component will last for one year?