Q81: A man wanted to board a plane
Q82: Perform the following operation.<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7816/.jpg" alt="Perform
Q83: Find a rational number and an irrational
Q84: Simplify the expression.<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7816/.jpg" alt="Simplify the
Q85: Check whether the set and the operation
Q87: Perform the operation <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7816/.jpg" alt="Perform the
Q88: Simplify the expression.<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7816/.jpg" alt="Simplify the
Q89: Perform the following operation.<br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7816/.jpg" alt="Perform
Q90: <br>-Is the statement <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7816/.jpg" alt=" -Is
Q91: Let <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7816/.jpg" alt="Let be