The currency used in a country is called 'Matimalik'(M) and is of base seven. A lady in that country bought 4 bags of rice at M56 per bag and and 3 tins of milk at M4 per tin. What is the total cost of the item she bought?
A
M2467
B
M2427
C
M2367
D
M3417
E
M3387
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
4 bags of rice - M 56 each
3 tins of milk - M 4 each
\(M 56 \times 4 = M 323\)
\(M 4 \times 3 = M 15\)
\(M (323 + 15) = M 341\)
Source: Myschool Past Questions Archive (Record #32498)