Placement Papers - MCQ Practice Questions

In a sequence, the first term is 2 and each subsequent term is obtained by multiplying the previous term by 3 and subtracting 1. What is the 4th term?

Find the missing number in the series: 4, 9, 25, 49, 121, ?

What will be the output of the following pseudocode? int a = 5, b = 10; while(a < b) { b = b - a; a = a + 1; } print(a, b);

A software developer needs to optimize a SQL query. Currently, the query performs a full table scan on a table with 1 million rows. Which of the following would be the BEST approach to improve performance?

A train travels from City A to City B at 60 km/h and returns at 40 km/h. The total distance between the two cities is 240 km. What is the average speed of the train for the entire journey?

In a sequence, each number is the sum of the previous two numbers. If the 5th number is 20 and the 6th number is 32, what is the 4th number?