ICSE Mathematics Std.8 Solution on 'Discount And GST"

1. 100
)
(
% Pr x
Discount ice
Marked
Discount

ice
OfMarked
ice
Net
tA
ForDiscoun
A
Pr
)
1
(
Pr
%,
100


ice
OfMarked
A
A
ice
Net
ounts
essiveDisc
ForTwoSucc A
A
Pr
)
1
)(
1
(
Pr
,
,
100
100
2
1
2
1




2. 4600
.
230
20
.
230
598
.
2990
65
100
.
)
.
(
Pr
5
100
13
100
Rs
x
Rs
x
Rs
or
x
Rs
x
Rs
P
M
ice
Marked






3. 4600
.
230
20
.
230
598
.
2990
65
100
.
)
.
(
Pr
5
100
13
100
Rs
x
Rs
x
Rs
or
x
Rs
x
Rs
P
M
ice
Marked






4. ice
Sale
Rs
x
x
ice
Net
Pr
1350
450
1800
1800
)
(
1800
1800
)
(
1800
Pr
4
1
100
25









5. 1125
.
.
.
1125
.
5
225
.
)
)(
(
1350
.
)
(
1350
.
)
(
1350
.
)
(
1350
.
)
1
(
1350
.
.
)
1
(
.
100
120
120
100
120
100
100
120
100
20
100
100
20
100
100
100
20
100
Pr
Rs
P
C
P
C
P
C
x
P
xC
x
P
xC
P
C
P
C
P
xC
Rs
P
OfC
P
S ofit














6. 2
.
3907
.
.
2
.
3907
.
2
.
651
3256
3256
5
1
3256
3256
3256
.
.
.
100
20
Rs
P
S
Rs
P
S
x
x
P
C
DiscountOn
P
C
P
S










3256.00
+651.20
_______
3907.20
3256
_____=651.20
5

7. 4440
.
.
4440
.
4
.
44
100
2
.
355
2
.
3907
88
100
.
8
100
Rs
P
M
Rs
P
M
x
x
x
P
M






8. 25260
)
1
)(
1
(
.
)
1
)(
1
(
.
Pr
)
1
)(
1
(
.
100
20
100
25
100
100
100
100
2
1
2
1
x
P
xM
A
A
P
S
ice
OfMarked
A
A
P
S










9. 15156
.
.
15156
5052
3
25260
25260
)
)(
(
25260
)
5
1
5
)(
(
25260
)
)(
(
25260
)
1
)(
1
(
25260
)
1
)(
1
(
.
)
1
)(
1
(
.
Pr
)
1
)(
1
(
.
5
3
5
4
4
3
4
1
4
5
1
5
5
4
1
4
4
5
1
4
1
100
20
100
25
100
100
100
100
2
1
2
1
Rs
Rs
x
x
x
x
x
x
x
P
xM
A
A
P
S
ice
OfMarked
A
A
P
S
























10. %
25
100
)
(
100
)
(
%
4
1
80
20



x
x
Gain

12. %
12 2
1
%
12 2
1
19250
.
.
19250
2750
22000
110
25
22000
220
22000
22000
22000
.
%
12
.
2
25
100
2
1
2
25
Rs
Rs
x
x
x
P
ofM
P
M













13. 19250
.
%
18
19250
.
.
19250
2750
22000
110
25
22000
220
22000
22000
22000
.
%
12
.
2
25
100
2
1
2
25
OfRs
GST
Rs
scount
bleAfterDi
AmountPaya
Rs
x
x
x
P
ofM
P
M














14. 22715
.
3465
.
19250
.
19250
.
3465
.
3465
3850
9
19250
19250
5
9
100
18
Rs
Rs
Rs
GST
Rs
rGST
ayableAfte
NetAmountP
Rs
Rs
x
x
x
GST











15. 288
.
288
16
18
1600
100
18
Rs
Rs
x
x





16. xY
100
18

100
118
100
18
100
100
18
100
100
100
18
100
100
100
18
10800
10800
10800
10800
10800
Y
Y
Y
Y
Y
Y
Y
xY
Y










17. 54
.
9152
.
54
.
9152
118
100
10800
10800
118
1080000
118
118
118
1080000
100
118
Rs
Y
Y
Y
Y
Y
x
Y





