basic numeracy · upsc csat

number system hcf lcm

Question 1 of 900 correct · 0 wrong
Single answer+2.5 / −0.83

What is the least positive number that must be added to 894 to make it a perfect square?

How sure are you?

A–D choose · 1 2 3 confidence · Enter check · → next · B bookmark

Questions

CorrectWrongBookmarked

This session

Accuracy

—

Avg. time

—

Tip: strike out options you can rule out before choosing. It is the habit that wins Prelims.