Aptitude - Profit and Loss - Discussion

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"Do not wait for leaders; do it alone, person to person."

- Mother Teresa

14.

A shopkeeper sells one transistor for Rs. 840 at a gain of 20% and another for Rs. 960 at a loss of 4%. His total gain or loss percent is:

[A].

5	15	% loss
	17

[B].

5	15	% gain
	17

[C].

6	2	% gain
	3

[D].

None of these

Answer: Option D

Explanation:

C.P. of 1^st transistor = Rs. 100 x 840 = Rs. 700.

120

C.P. of 2^nd transistor = Rs. 100 x 960 = Rs. 1000

96

So, total C.P. = Rs. (700 + 1000) = Rs. 1700.

Total S.P. = Rs. (840 + 960) = Rs. 1800.

Gain % = 100 x 100 % = 5 15 %

1700 17

Mrs Pallavi said: (Thu, May 19, 2011 08:43:18 AM)

In simple way by using our logic, sp1=840 p1=20% sp2=960 p2=4% cp1=(sp1100)/(100+20).....by formula of profit cp1=(840100)/(100+20) cp1=700 here gain is 840-700=140 cp2=(sp2100)/(100-4).....by formula of loss cp2=(960100)/(100-4) cp2=1000 loss is 1000-960=40 therefore total gain=140-40=100 profit%=(actual profit /cp)100 =100/1700100 =100/17 =5.88% ans (b)

Kiran Sharma said: (Sat, Jun 18, 2011 08:15:58 AM)

Very Easy Apply formula of Cost price in both cases of profit and loss c.p. = 100sp/100-gain% and also of Cp = 100sp/100-loss% and in this way you will get cost price of both cases and then add both cost prices to get total cost price afterwards also add both selling price to get total s.p. and then subtract it to get profit apply profit % formula to get profit amount