Sequence And Series · Basic Numeracy · UPSC Civil Service

On January 1st, 2023, a person saved ₹1. On January 2nd, 2023, he saved ₹2 more than that on the previous day. On January 3rd, 2023, he saved ₹2 more ...

What is the sum of the first 28 terms in the following sequence?1, 1, 2, 1, 3, 2, 1, 4, 3, 2, 1, 5, 4, 3, 2, ...

What will come in place of * in the sequence 3, 14, 39, 84, *, 258?

40 children are standing in a circle and one of them (say child-1) has a ring. The ring is passed clockwise. Child-1 passes on to child-2, child-2 pas...

For five children with ages a < b < c < d < e; any two successive ages differ by 2 years. Question: What is the age of the youngest child...

What is the value of X in the sequence 20, 10, 10, 15, 30, 75, X?

In a tournament of Chess having 150 entrants, a player is eliminated whenever he loses a match. It is given that no match results in a tie/draw. How m...

In the series AABABCABCDABCDE..., which letter appears at the 100th place?

What is the value of X in the sequence 2, 12, 36, 80, 150, X?

The sum of three consecutive integers is equal to their product. How many such possibilities are there?

A biology class at Central High School predicted that a local population of animals will double in size every 12 years. The population at the beginnin...

A boy plays with a ball and he drops it from a height of 1.5 m. Every time the ball hits the ground, it bounces back to attain a height 4/5th of the p...

In the series _b_a_ba_b_abab_aab; fill in the six blanks ( _ ) using one of the following given four choices such that the series follows a specific ...

Consider the following statements : 1. The sum of 5 consecutive integers can be 100. 2 The product of three consecutive natural numbers can be ...

What is the value of ‘X’ in the sequence 2, 7, 22, 67, 202, X, 1822, ?