If {(a2b-3c)3/4/a-1b4c5} = apbqcr; what is the value of p+2q?
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A.
(5/2)
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B.
-(5/4)
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C.
-(25/4)
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D.
-10
Correct Answer: Option D
Explanation
Hint: Use BODMAS and algebra to arrive at the values of P = 5/2, q = -25/4 and r = -9/2.
Then substitute the values of p and q into p+2q to get -10.
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2 years ago
[a^2(3/4)b^-3(3/4)c^(3/4)]divided by (a^-1b^4c^5)
===>(a^3/2b^-9/4c^3/4)divided by (a^-1b^4c^5).
Note a^p =3/2-(-1)==>p=5/2
q=-9/4-(4)===>q=-25/4
r=3/4-(5)===>r=-17/4
now p+2q
5/2+2(-25/4)
:- p+2q=-10.
Make use of indice...