Dub ltd has agreed to start with petty cash float of £250. During month of September the following transcations were recorded by the petty cashier:
1. £12.00
2. £9.70
3. £17.90
4. £39.00

How much is needed at the end of the month to maintain the float at agreed level?
a. £171.40
b. £78.60
c. £250.00
d. £69.40

Duh! imbedded in the data is the answer otherwise use your calculator, for me this is mental arithmetic, for you, find a new profession

4,500 rupees?