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A VC Tweeted Out A Math Problem Aimed At 11 Year-Olds - Can You Solve It?
Maya KosoffJan 15, 2015, 19:34 IST
Startup guru Paul Graham, who co-founded the seed capital firm Y Combinator, tweeted out this math problem to his followers on Thursday.
Graham said the math problem was a question on the 11-plus exam, a test given to some students in their last year of primary school. The 11-plus, which used to be widely used throughout England, is now only used in some counties in the country.
The 11-plus serves as an admission tool for students who are 11 or 12 years old and entering secondary school (that's where it gets its name from). It has four sections: English, mathematics, non-verbal reasoning, and verbal reasoning.
Followers quickly responded that the right answer is 22. If you're stumped, here are some of Graham's followers' answers and their explanations.