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

Correct answer is D

4 bags of rice - M 56 each

3 tins of milk - M 4 each

\(M 56 \times 4 = M 323\)

\(M 4 \times 3 = M 15\)

\(M (323 + 15) = M 341\)

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