₹99 ₹499 · Full access — all mocks, practice sets & books · Unlock now

Number System

Practice Set
Attempted: 0Correct: 0Incorrect: 0
1 of 1 (adapting live)Medium
The sum of two digits of a 2-digit number is 9. If the number obtained by interchanging the digits exceeds the original number by 27, find the number.

Quantitative Aptitude · stress-free practice · answers reveal instantly · difficulty adapts as you go