Latest L&T Aptitude Question SOLUTION: If a commission of 10% is given on the marked price of a book, the publisher gains 20%. If the commission is increased to 15%, the gain is: (a) 16(2/3)% (b) 13(1/3)% (c) 15 (1/6)%

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(#M40156537) L&T Numerical Ability question Keep an EYE

If a commission of 10% is given on the marked price of a book, the publisher gains 20%. If the commission is increased to 15%, the gain is:
(a) 16(2/3)%
(b) 13(1/3)%
(c) 15 (1/6)%
(d) 15%
(e) None of these

Asked In L&T ABHINAV PUSHPAM (7 years ago)

Unsolved Read Solution (4)

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Read Solution (4) :

Roger Anton  (7 years ago)

(b); Let C.P.=Rs. 100. First S.P.=Rs. 120
Now, S.P. =Rs. 120, commission=10%
Therefore, Marked Price=[(100/90)X120]=Rs. 400/3.
No, marked price=400/3, commission=15%
Therefore, S.P.=85% of 400/3=[(85/100)X(400/3)]=340/3.
Therefore, Gain%=[(340/3)-100]=40/3=13(1/3)%.

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BHARAT KUMAR  (7 years ago)

Answer :
Let CP = 100 and Marked Price = X.
SP = 100 + 20% of 100 = 120.
10% commision was given on SP.
SP = X - 10% of X
120 = X - 10X/100
120 = 9X/10
9X = 1200
X = 1200/9 = 133.33.
MP = 133.33.
If 15% commission was given, then
SP = 133.33 - 15% of 133.33 =
SP = 133.33 - 20
SP = 113.33.
Gain = 133.33 - 100.
% Gain = 13.33%.

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Sundaram Bhaskar  (5 years ago)

Let Marked Price=100
S.P=M.P-Commission=100-10=90
Profit=20%
C.P=(100/120)*90=75
NEW commission=15
S.P=100-15=85
Gain=85-75=10
Gain%=(10*100)/75=40/3

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yatin arora  (6 years ago)

cp*120/100 = mrp* 90/100
hence cp = mrp *3/4
cp * x/100 = mrp*85/100 put value of cp from above eq i.e
mrp *3/4 * x/100 = mrp * 85/100
x= 113 1/3
therfore change in profit is 113 1/3 -100 = 13 1/3

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