A metal cube of edge 18 cm is melted to form three smaller cubes, which are unequal in dimensions. If the edges of two smaller cubes are 9 cm and 15 cm, what is the surface area in (cm 2) of the third smaller cube?
8 women and 8 girls can finish a piece of work in 6 days, whereas 4 women and 10 girls can finish it in 8 days. In how many days will one girl finish it working alone?
The simple interest on a certain amount of money is 27% of the principal amount. The time for which the money is lent is one - third of the numerical value of the rate per cent per annum. What is the rate per cent?
General Awareness
When an ant bites, it injects acidic liquid (formic acid) into the skin. What among the following should be applied to the skin to neutralise it?
