Find each of the following:
(i) 7% of Rs.7150
(ii) 40% of 400Kg
(iii) 20% of 15.125litres
(iv) 3(1/3)% of 90 km
(v) 2.5% of 600metres
Find the number whose 12(1/2) % is 64.
What is the number, 6(1/4)% of which is 2?
If 6 is 50% of a number, what is the number?