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1. Check whether student can calculate simple interest, e.g. How much money would you have after 1 year if you have £50 and get 3% interest? (Ans: 50*1.03 = 51.50)

2. Once this is un...

To factorise an equation entirely it is necessary to think of the commonality between all terms. In this case, not only 'x' is common in all the parts of the equation, but also '3'. Knowing this informati...

The sphere has radius Y, so the volume of the sphere is 4/3 (pi) Y³ , The volume is the same for the cyclinder so we know the volume of the cylinder in terms of Y. Cyclinder volume = area of ci...