One night two candles, one of which was 3 cm longer than the other
were lit. The longer one was lit at 5.30 pm and the shorter one at
7 pm. At 9.30 pm they were both the same length. The longer one,
burned out at 11.30 pm and the shorter one burned out at 11 pm. How
long was each candle originally?
A mother wants to share a sum of money by giving each of her
children in turn a lump sum plus a fraction of the remainder. How
can she do this in order to share the money out equally?
A simple method of defining the coefficients in the equations of chemical reactions with the help of a system of linear algebraic equations.
Tim sent us his excellent answer to this
Laura (West Flegg Middle School, Great
Yarmouth, Norfolk) came very close to this answer. Her solution was
28 minutes past 6 o'clock.