A market woman sells oil in cylindrical tins 10cm deep and 6cm in diameter at N15.00 each. If she bought a full cylindrical jug 18cm deep and 10cm in diameter for N50.00, how much did she make by selling all the oil?
- N62.50
- N35.00
- N31.00
-
N25.00
The correct answer is: D
Explanation
V\(\pi\)r2h = \(\pi\)(3)2(10) = 90\(\pi\)cm3V = \(\pi\)(5)2 x 18 = 450\(\pi\)cm3
No of volume = \(\frac{450\pi}{90\pi}\)
= 5
selling price = 5 x N15 = N75
profit = N75 - N50 = N25.00