Page 12 - Digi Notes : Maths - 11.03.2016
P. 12
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CP Mixture 40 Paise/kg 100 % 32 Paise/kg
125 %
? kg 25 kg
Salt 1 Salt 2
42 24
32
8 : 10
S alt 1 :Salt 8 : 10 4 :5
2
S alt 25 4 20 kg
1
5
13. A man bought two watches for Rs.1620. He sold one
so as to gain 120% while the other so as to gain 30%; and
gains as much the amount for which he bought the two
watches. Find the difference of the cost price of the
watches.
%P Overall 1620 100 100 %
1620
Watch 1 Watch 2
120 % 30 %
100 %
70 % : 20 %
Cost of Watch 1 :Cost of Watch 2 : 7
2
C ots Difference Rs . 1620 5 Rs . 900
9
14. A man bought two watches each for Rs.2000 and
Rs.3000 respectively. He sold first so as to gain 20% while
the second so as to gain 30%. Find his overall profit
percentage.
www.mahendraguru.com
CP Mixture 40 Paise/kg 100 % 32 Paise/kg
125 %
? kg 25 kg
Salt 1 Salt 2
42 24
32
8 : 10
S alt 1 :Salt 8 : 10 4 :5
2
S alt 25 4 20 kg
1
5
13. A man bought two watches for Rs.1620. He sold one
so as to gain 120% while the other so as to gain 30%; and
gains as much the amount for which he bought the two
watches. Find the difference of the cost price of the
watches.
%P Overall 1620 100 100 %
1620
Watch 1 Watch 2
120 % 30 %
100 %
70 % : 20 %
Cost of Watch 1 :Cost of Watch 2 : 7
2
C ots Difference Rs . 1620 5 Rs . 900
9
14. A man bought two watches each for Rs.2000 and
Rs.3000 respectively. He sold first so as to gain 20% while
the second so as to gain 30%. Find his overall profit
percentage.
www.mahendraguru.com
