Skip to content

Home
Study Material
Sociology
General Studies
About

Home
Study Material
Sociology
General Studies
About

CSAT 2021

Q. When a certain number is multiplied by 7, the product entirely comprises ones only (1111…). What is the smallest such number?

(a) 15713
(b) 15723
(c) 15783
(d) 15873
Correct Answer: (d) 15873

Question from UPSC Prelims 2021 CSAT Paper

Explanation :

Best Method- Check All option
15873 × 7 = 111111

PrevPreviousQ. 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?

NextQ. On a chess board, in how many different ways can 6 consecutive squares be chosen on the diagonals along a straight path ?Next

UPSC Factory App

UPSC PYQs Prelims & Mains with Solution, Past Paper PDF, CSAT Notes, Quotes, NCERT Books.

More Questions:

Q. Although most of the Genetically Modified (GM) crops cultivated now are genetically engineered for a single trait, in future, crops genetically engineered for more than one trait will be the norm.

Q. Consider the following: I. A+B means A is neither smaller nor equal to B. II. A-B means A is not greater than B. III. A x B means A is not smaller than B. IV. A B means A is neither greater nor equal to B. V. AB means A is neither smaller nor greater than B.

Q. At the heart of agroecology is the idea that agroecosystems should mimic the biodiversity levels and functioning of natural ecosystems.

Q. The last end of the state is not to dominate men, nor to restrain them by fear; rather it is so to free each man from fear that he may live and act with full security and without injury to himself or his neighbour. The end of the state, I repeat, is not to make rational beings into brute beasts and machines. It is to enable their bodies and their minds to function safely. It is to lead men to live by, and to exercise, a free reason; that they may not waste their strength in hatred, anger and guile, nor act unfairly toward one another.

Q. A man walks down the backside of his house straight 25 meters, then turns to the right and walks 50 meters again; then he turns towards left and again walks 25 meters. If his house faces to the East, what is his direction from the starting point?

Q. What is the largest number among the following?

Home
Study Material
Sociology
General Studies
About

Sociology OWL

© UPSC Factory 2024

UPSC Factory Home

UPSC Factory for Windows

Get Syllabus Tracker, Prelims PYQs (3000+), Mains Model Answers, NCERT Books, Topper Notes & Answer Sheet, Strategy, Past Paper for Offline Study. Click to Install !!

UPSC Factory App

Get everything you need for upsc preparation with just one click! Install now!