model 2 hiking & discounting Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 4 EXERCISES
The following question based on discount topic of quantitative aptitude
(a) gain of 25%
(b) gain of 12%
(c) loss of 12%
(d) loss of 20%
The correct answers to the above question in:
Answer: (b)
Let the CP of article be Rs.100.
Marked price = Rs.140
S.P. = ${140 × 80}/100$ = Rs.112
Gain per cent = 12%
Using Rule 8,
Here, r = 40%, $r_1$ = 20%
Required profit or loss %
= ${r × (100 - r_1)}/100 - r_1$
= ${40 × (100 - 20)}/100 - 20$
= ${40 × 80}/100 - 20$
= 32 - 20 = 12% profit
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Question : 1
A trader marks his goods at 20% above the cost price. If he allows a discount of 5% for cash down payment, his profit percent for such a transaction is
a) 12%
b) 17%
c) 14%
d) 15%
Answer »Answer: (c)
Let C.P. be Rs.100.
Marked price = Rs.120
S.P. = ${120 × 95}/100$ = Rs.114
Gain per cent = 14%
Using Rule 8,
Here, r = 20%, $r_1$ = 5%
Gain % = ${r × (100 - r_1)}/100 - r_1$
= ${20 × (100 - 5)}/100 - 5$
= 19 - 5 = 14%
Question : 2
A shopkeeper marks the price of an item keeping 20% profit. If he offers a discount of 12$1/2$% on the marked price, his gain percent will be
a) 5%
b) 8%
c) 7.5%
d) 4.5%
Answer »Answer: (a)
Let the cost price be Rs.100.
Marked price = Rs.120
SP = 87$1/2$% of 120
= $175/200 × 120$ = Rs.105
Gain per cent = 5%
Using Rule 8,
Here, r = 20%, $r_1 = 12{1}/2$%
Profit % = ${r × (100 - r_1)}/100 - r_1$
= ${20 × (100 - {25/2})}/100 - {25/2}$
= ${20 × 175}/200$ - 12.5
= 17.5 - 12.5 = 5%
Question : 3
A tradesman marks his goods 10% above his cost price. If he allows his customers 10% discount on the marked price, how much profit or loss does he make, if any?
a) 1%loss
b) No gain, no loss
c) 5% gain
d) 1% gain
Answer »Answer: (a)
Required loss [As per Rule]
= $({10 × 10}/100)$% = 1%
Using Rule 8,A tradesman marks his goods r% above his cost price. If he allows his customers a discount of $r_1$% on the marked price. Then is profit or loss per cent is${r × (100 - r_1)}/100 - r_1$(Positive sign signifies profit and negative sign signifies loss).
Here, r = 10% and $r_1$ = 10%
Required profit or loss
= ${r × (100 - r_1)}/100 - r_1$
= ${10 × (100 - 10)}/100 - 10$
= 9 - 10
= –1% (–ve sign shows loss) = 1% loss
GET discount PRACTICE TEST EXERCISES
model 1 profit x after discount y
model 2 hiking & discounting
model 3 successive discount
model 4 mixed discount problems of marked price
discount Shortcuts and Techniques with Examples
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