Quiz Solve this quiz By vaaio - March 31, 2018 4 Share Facebook Twitter Google+ Pinterest WhatsApp Linkedin ReddIt Email Tumblr Telegram StumbleUpon VK Digg LINE Viber Quiz of the day

are you sure? The correct answer is 90! 9 * (9 + 1) -> 9 * 10 = 90. First, sum the values within the brackets, then multiply Reply

The answer is is 81 because the equation is n*(n+1)

are you sure?

The correct answer is 90!

9 * (9 + 1) ->

9 * 10 = 90.

First, sum the values within the brackets, then multiply

9=72

72