GCSEs vs O-Levels - Which is easier?

With the ongoing debate of whether the modern-day GCSE's are easier than those our parents sat, Oxford Open Learning has put it to the test.
With a new interactive project titled 'Would You Pass?', this online test includes three subjects (Maths, Science, and Geography) at ten questions each. The challenge being that those questions consist of 50% modern day GCSE questions and 50% O-Level questions from decades gone by.
Would you be able to answer the O-Level questions? Why not find out by taking the test yourself, it only takes a few minutes: http://www.ool.co.uk/would-you-pass/
At the end of the test, the results are revealed and you can share your scores.
For further information, visit www.ool.co.uk