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WAEC Mathematics 2010 Paper
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© africaexams.com
Question : 25
Total: 49
Bola sold an article for N6,900.00 and made a profit of 15%. If he sold it for N6,600.00 he would make a
profit of 13%
loss of 12%
loss of 10%
loss of 5%
Validate
Solution:
s.p = N6900
%profit = 15%
%profit =
s
.
p
−
c
.
p
c
.
p
x 100%
15% =
6900
−
c
.
p
c
.
p
x 100%
15
100
c.p = N6900 - c.p
0.15 c.p = N6900 - c.p
1.15c.p + c.p = N6900
c.p =
6900
1.15
= 6000.00
Now new S.P = N6600
profit = s.p - c.p = 6000 - 6600
= 600
%profit =
600
6600
x 100%
= 10%
© africaexams.com
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