Latest TCS Aptitude Question SOLUTION: Q. If apples are bought at the rate of 30 for Rs.100. How many apples must be sold for Rs.100 so as to gain 20%? Option A) 28 B) 25 C) 20 D) 22

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Q. If apples are bought at the rate of 30 for Rs.100. How many apples must be sold for Rs.100 so as to gain 20%?
Option
A) 28
B) 25
C) 20
D) 22

Asked In TCS (6 years ago)

Solved RAKESH Read Solution (20)

Is this Puzzle helpful?   (60)   (23) Submit Your Solution Profit and Loss

Read Solution (20) :

RAKESH  (6 years ago)

SP for 30 apples to gain 20%= 100*120/100 =120
so 30 apples must be sold for rs 120

rs 120= 30 apples
rs 100= (30/120)*100 =25 apple

Is this solution Helpfull? Yes (61) | No   

saranya sankar  (6 years ago)

formula for this type of questions is
(goods left/goodssold)*100

by options
a 2/28*100=7.14% this is not the answer
b 5/25*100=20% hence correct answer is b...

Is this solution Helpfull? Yes (32) | No (3)  

karthikeyan  (6 years ago)

To get 20% profit, we need to sell it for Rs.120.
if SP of 30 apples is 120, then SP of 1 apple is RS.4,
But we SP is only Rs.100,
so numb of apples is (100/4)=25
Ans: opt B) 25 apples

Is this solution Helpfull? Yes (13) | No (1)  

Alex  (6 years ago)

30 for 100 then each apple cost will be 3.333333
in order to gain 20% (rs 20) from 100 will be selling 80 rs apples that is 24

Is this solution Helpfull? Yes (7) | No (1)  

durga bhavani  (6 years ago)

ans:d
20=(profit/100)*100
profit=20
s.p=100+20 =120 for 30 apples
100 for ?
100*30/120=25

Is this solution Helpfull? Yes (3) | No (1)  

Gourab Das  (6 years ago)

cost price of 30 apples Rs.100
so cost price of 1 apple is Rs.10/3
now,given gain=20%
therefore s.p=120% of cost price
selling price of one apple=(120/100)*(10/3)=4
therefore for a profit of 20%,the s.p of 1 apple will be Rs.4
for Rs.100 ,(1/4*100)=25 apples must be sold.

Is this solution Helpfull? Yes (2) | No   

pullisrinivasareddy  (6 years ago)

30 apples - Rs.100
1 apple - 10/3
20% profit means
1 apple - (10/3)+(2/3)=12/3
if Rs.12/3 costs - 1 apple
Rs.100 costs - (100*3)/12=25

Is this solution Helpfull? Yes (1) | No (1)  

nikita rajvanshi  (6 years ago)

ans is 25

Is this solution Helpfull? Yes (1) | No   

bhargavi  (6 years ago)

100 = (120/100) * c.p
c.p = 1000/12
30 apples for 100
? apples for 1000/12 = 25

Is this solution Helpfull? Yes | No (1)  

arvind khatri  (6 years ago)

100/30=3.33
(3.33*20)/100=.66
3.33+.66=3.99
100/3.99=25.06
so answer is b

Is this solution Helpfull? Yes | No   

Raghav gupta  (6 years ago)

answer is 25
cp of one apple is 100/30 or 10/3
sp for one apple is (10/3)*20% of(10/3)
sp is 4
so sp for rs 100 apple is 25

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Saptarsi Sinha  (6 years ago)

25 apples for Rs. 100

Is this solution Helpfull? Yes | No   

saidulushaik  (6 years ago)

c.p=1000/3
s.p=(120/100)*(1000/3)
ans=20

Is this solution Helpfull? Yes | No   

VAISHALI RATHI  (6 years ago)

if CP of M article is equal to the SP of N article then
%gain or loss = ((M-N)/n)*100
let N apples have been sold
20 = ((30-N)/N)*100
N=25 apples

Is this solution Helpfull? Yes | No   

sandeep kumar  (6 years ago)

25% GAIN FROM 30 APPLES=120*100/100=120
30 MUST BE SOLD AT THE RATE =120RS
100 APPLES=(3/12)*100=25

Is this solution Helpfull? Yes | No   

preeti singh  (6 years ago)

cost of 30 apples - 100rs
cost of 1 apple - 100/30 = 10/3

SP = [1+(20/100)]* CP
= 120/100 * 10/3
= 4 rs

in 4 rs - 1apple is sold
therefore in 100 rs - 100/4 = 25

Is this solution Helpfull? Yes | No   

nirmala  (5 years ago)

If a man buys x items for Rs.y and sells z items for Rs.w,then the gain or loss percent made him is
%gain or loss=((xw/zy)-1)*100.
therefore,20=((300/100z)-1)*100=20......(eq)
By solving this eq. ,we will get z=25

Is this solution Helpfull? Yes | No   

gopalakrishna polisetti  (5 years ago)

Cost price of each apple=100/30.
let x number of apples should be sell to gain 20 percent profit.
Then,selling price of each apple=100/x.
we can write,100/x=(100/30)*1.2
»x=25

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Sudhakar Reddy  (5 years ago)

Ans 25
cost of 1 apple=100/30=3.33
Cost of 1 apple to get 20% gain is 120/100*3.33=3.999
So for 100 rupees 100/3.999=25.06 (Appox 25) apples can be sold

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Chandramohan  (3 Months ago)

First Find selling price of 30 apples using the given data which would be rupees 120
Then perform interpolation in order to find for rupees 100 which would be 25

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