Given that 2p – m = 6 and 2p + 4m = 1, find the value of (4p + 3m).
-
A.
1 -
B.
3 -
C.
5 -
D.
7 -
E.
9
Correct Answer: Option D
Explanation
2p – m = 6 … (i)
2p + 4m = 1 … (ii)
From (i), m = 2p – 6.
2p + 4(2p – 6) = 1
2p + 8p – 24 = 1
10p = 1 + 24 = 25
p = 2.5
m = 2(2.5) – 6
= 5 – 6
= -1
(therefore) 4p + 3m = 4(2.5) + 3(-1)
= 10 – 3
= 7