UPSC CSAT Mathematics Questions

Which number amongst 2^40, 3^21, 4^18 and 8^12 is the smallest?

Which day is 10th October, 2027?

At which one of the following times, do the hour hand and the minute hand of the clock make an angle of 180° with each other?

Joseph visits the club on every 5th day, Harsh visits on every 24th day, while Sumit visits on every 9th day. If all three of them met at the club on a Sunday, …

You are given two identical sequences in two rows: What is the entry in the place of C for the Sequence-II?

A man completes 7/8 of a job in 21 days. How many more days will it take him to finish the job if the quantum of work is further increased by 50%?

If the price of an article is decreased by 20% and then the new price is increased by 25%, then what is the net change in the price ?

P scored 40 marks more than Q in an examination. If Q scored 10% less marks than P, then how much did Q score?

A student appeared in 6 papers. The maximum marks are the same for each paper. His marks in these papers are in the proportion of 5 : 6 : 7 : 8 : 9 : 10. Overal…

In a class, 60% of students are from India and 50% of the students are girls. If 30% of the Indian students are girls, then what percentage of foreign students …

A simple mathematical operation in each number of the sequence 14, 18, 20, 24, 30, 32, … results in a sequence with respect to prime number. Which one of the fo…

A frog tries to come out of a dried well 4.5 m deep with slippery walls. Every time the frog jumps 30 cm, slides down 15 cm. What is the number of jumps require…

A person bought a car and sold it for Rs. 3,00,000. If he incurred a loss of 20%, then how much did he spend to buy the car ?

As a result of a 25% hike in the price of rice per kg, a person is able to purchase 6 kg less rice for Rs. 1,200. What was the original price of rice per kg?

Consider the following data: What is the value of x in the above table ?

In a Zoo, there are some Dears and Ducks. If the heads are counted, they are 180, while the legs are 448. What will be the number of Dears in the Zoo?

In a class, there are three groups A, B and C. If one student from group A and two students from group B are shifted to group C, then what happens to the averag…

The average age of a teacher and three students is 20 years. If all the three students are of the same age and the difference between the age of the teacher and…

What is the largest number among the following?

Mr ‘X’ has three children. The birthday of the first child falls on the 5th Monday of April, that of the second one falls on the 5th Thursday of November. On wh…