p varies directly as the square of q and inversely as r. ...
p varies directly as the square of q and inversely as r. If p = 36, when q = 36, when q = 3 and r = 4, find p when q = 5 and r = 2
72
100
90
200
125
Correct answer is D
P α q2r
P = kq2r
k = prq2
= 36x4(3)2
p = 16q2r
= 16×252
= 200
Make t the subject of formula k=m√t−pr...
What is the number whose logarithm to base 10 is 2.3482? ...
A cone with the sector angle of 45° is cut out of a circle of radius r of the cone....
The expression x3 - 4x2 + cx + d is such that x + 1 is its factor, and its value is 1...
A pair of shoes was sold for N2,250.00 at a loss of 10%. What was the cost price?...