The cost of 4 markers and 3 pencils is Rs 113 and the cost of 7 markers and 4 pencils is Rs 184. Find the cost of 2 Markers and 1 pencil?
92
56
51
42
Solution
4M + 3P = 113 ------------ (1)
7M + 4P = 184 ------------ (2)
Cost price of markers = 20
Cost price of pencils = 11
2 markers = $2 \times 20 = 40$ and 1 pencils
$= 11 \times 1 = 11$
= 40 + 11 = 51