Maths tutorial test 2

I'm still brooding over it.

It's actually highly ironic. Here I am, wallowing in self-pity over my move to skip the six-mark Question 4, while leaving the Physics books untouched for tomorrow's Physics class test.

But really. When the method came to my mind just before my Japanese lesson started, I just felt like jumping off the building—I was already on the seventh storey anyway. (The Jap classroom is all the way on the seventh storey because, well, that's where all the skirts fly, and the Japanese teacher is rumoured to have the power to position the Jap classroom in the building.)

I wouldn't be feeling so bad if the question was some killer, because I can conveniently attribute it to a sadistic tendency of the Maths Department that wouldn't repeat itself in the all-important A-Levels. But no, it wasn't, and I couldn't get it. Argh.

Note: Many people have different encounters with the dreaded Question 4. Here's mine: after reading the question, given my state of mind during the test, I was unable to think up of the method. With ten minutes left on the clock, I thought it wise to proceed to check my other questions instead.