For the following questions answer them individually
If one unit of electricity costs Rs.5 and the total electrical energy consumed in 1 month is 250kWh,what is the cost of electricity in that month?
Find the smallest number that is exactly divisible by each of the numbers 12, 15, 20 and 27.
If 'A' is substituted by 1, 'B' by 2 and so on up to 'Z', which is substituted by 26, what will be the sum of the numbers substituted for the word 'PROBLEM'?
Two children differ in their age by 2 years. Six years later, the sum of their ages will be 46. How old are they now?