As I read over this question I felt my heart sink within me. I knew I could not do it properly, and that I should again expose myself to ridicule in having said I could accomplish rule-of-three, when, if this were rule-of-three, I knew nothing of it. I sat for several minutes looking at the question, and trying to discover some means for its solution. Boys were mixed in my mind with ditches, men with days, and deep holes with width. At least a quarter of an hour passed without my making the slightest advance in the way of solution; at the end of this time Mr Monk looked at my slate and said,—
“So you don’t seem to know much about rule-of-three?”
“I never saw a sum like this before,” I replied.
“Then why did you tell me that you could do rule-of-three? Do you know your multiplication table?”
“Yes,” I replied.
“What’s 12 times 11?” he inquired.
Now, of all the multiplication table, 11 times anything was to me the easiest, because I remembered that two similar figures, such as 66, was 6 times 11, 77 was seven times 11, and so on; but 12 times 11 was a number I was always rather shaky about. I hesitated a moment and then made a wild rush at it, and said, “One hundred and twenty-one?”
Mr Monk looked at me with a mingled expression of pity and contempt, and said, “You’re nearly fifteen, and you don’t know your multiplication table, and yet you think you’re going to be an engineer! Why there’s not a boy at the charity-school who at twelve does not know more than you!”
I listened attentively to this remark, for I felt that Mr Monk was a prophet. It was quite true that I was a dunce. I had learnt it, and realised it in half a day. It had been forcibly impressed on me as I tried to learn Euclid, as I was ignominiously defeated by Fraser in a pugilistic encounter in something like ten minutes, and now when it was proved to me! did not know my multiplication table.
“You’d better commence at simple addition,” said Monk, “and work your way up. You can’t join any class; there’s no one so backward as you are. Your nursemaid ought to have taught you these things. At Mr Hostler’s we don’t expect to have to teach even arithmetic. It will take you three years to get up to quadratics!”