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Ramakrishna 9 years ago

Q: in a mixture of milk and water of 40 liters water is 5% . the amount of water to be added to this mixture so as to make water 10% is ? explain plzzzzzzzz

ans: 2+2/9

Reply Like? Yes | No

Tushar belwal 8 years ago

If u add water then amount of milk remains same i.e
Initial amount of Milk = 95% × 40 = 38
Final amount of milk = 90% × (x) =38
=> x=42+2/9
Amount of water added = 42+2/9 -40 = 2+2/9

Like? Yes | No

shreyansh 9 years ago

A grain merchant purchases two varieties
of rice; the price of the first kind being
twice that of the second. He mixes the two
varieties and sells for 28 per kg making a
profit of 25%. If the ratio of the first to the
second kind of rice is 2 : 3 in the mixture,
then the cost of costlier variety is:

Reply Like? Yes | No

A SIRISHA 9 years ago

8 litres are drawn from a cask full of wine and is filled with water . this operation is performed three more times .the ratio of the quantity of wine now left in cask to that of the water is 16 : 65 . how much wine did the cask hold originally ?

Reply Like? Yes (1) | No

ROHIT KUMAR DUBEY 9 years ago

Quantity Left=x*(1-y/x)^n
16/81=x*(1-y/x)^4/x
2/3=1-8/x
x=24 liters

Like? Yes (3) | No

A SIRISHA 9 years ago

a can contains a mixture of two liquids A and B in the ratio 7:5 . when 9 litres of mixture are drawn off and the can is filled with B .the ratio of A and B becomes 7: 9 . how many litres of liquid A was contained by the can initially ?

Reply Like? Yes (2) | No

A SIRISHA 9 years ago

A VESSEL IS FILLED WITH LIQUID , 3 PARTS OF WHICH ARE WATER AND 5 PARTS SYRUP. HOW MUCH OF THE MIXTURE MUST BE DRAWN OFF AND REPLACED WITH WATER SO THAT THE MIXTURE MAY BE HALF WATER AND HALF SYRUP ?

Reply Like? Yes (1) | No

A SIRISHA 10 years ago

4gms OF A MIXTURE OF NA2CO3 AND NAHCO3 ON HEATING LIBERATES 448ml OF CO2 AT STP . THE PERCENTAGE OF NA2CO3 IN THE MIXTURE?

Reply Like? Yes (1) | No (1)

A SIRISHA 10 years ago

WHEN A SHOPKEEPER SELLS AN ITEM AT 25 % DISCOUNT TO LIST PRICE , HE MAKES A PROFIT OF 25 % . IF HE HAD SOLD IT AT LIST PRICE ,HIS PROFIT WOULD HAVE BEEN? WITH EXPLANATION

Reply Like? Yes | No (1)

Devendra Marghade 10 years ago

66.66%
If CP=x, SP or list price=y
Given, 0.75y=1.25x, So when sold at its list price=y, Profit=1.25x * y/0.75y=5x/3=1.6666x
So profit=66.66%

Like? Yes (5) | No

A SIRISHA 10 years ago

A GRAIN MERCHANT PURCHASES 2 VARIETIES OF RICE. THE PRICE OF THE FIRST KIND BEING TWICE THAT OF THE SECOND. HE SELLS THE MIXTURE FOR RS. 28 PER KG MAKING A PROFIT OF 25 % .IF THE RATIO OF THE FIRST TO SECOND IS 2:3 IN THE MIXTURE , THEN VARIETY COSTED IS? WITH EXPLANATION.

Reply Like? Yes (10) | No (2)

Devendra Marghade 10 years ago

32 & 16 Rs/Kg.
If two quantities are 2x & 3x and Prices be 2y & y respectively, then
Cost Price= (2x*2y) + (3x*y)= 7xy
Selling Price@ 28/Kg =28*5x= 140x
Given, Selling Price= 125% of Cost price or 140x= (125/100)*(7xy), y=16
So the cost of varities are 2y & y =32 & 16 Rs. respectively

Like? Yes (5) | No (3)

A SIRISHA 10 years ago

A MERCHANT PROFESS TO LOSE 4 % ON A CERTAIN TEA , BUT HE USES A WEIGHT EQUAL A 840 KG INSTEAD OF 1 KG . FIND HIS REAL LOSS OR GAIN PERCENT ? WITH EXPLANATION

Reply Like? Yes (8) | No (2)

Gaurav Sharan 10 years ago

lET COST PRICE OF 1 KG BE P.
CP = 0.84P
SP= 0.96P
GAIN= 0.12P
GAIN%= 0.12P*100/0.84P=14.2%

Like? Yes (14) | No (1)

A SIRISHA 10 years ago

BY SELLING 12 KG OF ONIONS FOR RS.63 , I GAIN 5 %. WHAT DO I GAIN OR LOSE PERCENT BY SELLING 50 KG OF THE SAME ONIONS FOR RS. 247.50P ? WITH EXPLANATION

Reply Like? Yes | No

Devendra Marghade 10 years ago

1% loss
SP of 1 Kg. =63/12, As 5% gain is made, so Actual cost or CP of 1 Kg=(63/12)*(100/105)=5
Per Kg. price when 50 Kg. is sold for Rs. 247.5= 247.5/50= 4.95
So % loss= (5- 4.95)*100/5 =1

Like? Yes (1) | No

A SIRISHA 10 years ago

BY SELLING 66 METERS OF CLOTH , I GAIN THE COST OF 22 METERS . FIND MY GAIN PERCENT ? WITH EXPLANATION

Reply Like? Yes (38) | No (12)

Gaurav Sharan 10 years ago

GAIN = 22/66= 33.3 %

Like? Yes (28) | No (23)

neha pallavi 10 years ago

let selling price of 66 meters cloth is x.
so,1 meter cloth price is x/66.
then,22 meter cloth price are (x/66)*22=x/3.
and let cost price of 66 meters cloth is y.
gain =sp-cp=x-y.
x/3=x-y
so,y=x-x/3=2x/3.
now,gain%=(100*gain)/cp=(100*x/3)/2x/3
so,gain %=(100x/3)*3/2x=50% is answer.

Like? Yes (41) | No (34)

Aashish 8 years ago

66sp-66cp=22cp
66sp=88cp
sp/cp=88/66

gain%=22/66*100
gain % = 33.33%

Like? Yes (30) | No (13)

A SIRISHA 10 years ago

A MERCHANT PURCHASED 300 QUINTALS OF GRAM . HE SOLD 200 QUINTALS AT RS. 126 PER QUINTAL AND THEREBY GAINDE 5 PERCENT ON IT. AT WHAT RATE SHOULD HE SELL THE REMAINDER SO THAT THEY MAY GAIN 10 PERCNT ON THE WHOLE ? WITH EXPLANATION

Reply Like? Yes (9) | No (2)

Gaurav Sharan 10 years ago

Let CP= c
126*200=1.05c, gives c= 24000.
Again, let SP for 100 quintels be s.
126*200+100s=1.1*24000
s= 12.

Like? Yes (2) | No (11)

A SIRISHA 10 years ago

A GROCER BOUGHT 48 KG OF WHEAT FOR RS. 80, AND WAS OBLIGED TO SELL IT AT A LOSS OF AS MUCH MONEY AS HE RECEIVED FOR 2 KG . FIND THE SALE PRICE PER KG .? WITH EXPLANATION

Reply Like? Yes (3) | No

Ramakrishna 10 years ago

Q: Who is the Present Chief Information Commissioner ?

Reply Like? Yes | No

A SIRISHA 10 years ago

Who is the Present Chief Information Commissioner ?

vacant

Like? Yes (1) | No

A SIRISHA 10 years ago

Q. SUPPOSE WE UNIFORMLY AND RANDOMLY SELECT A PERMUTATIONS FROM THE 20 ! PERMUTATIONS OF 1,2,3,................,20 . WHAT IS THE PROBABILITY THAT 2 APPEARS AT AN EARLIER POSITION THAT ANY OTHER EVEN NUMBER IN THE SELECTED PERMUTATIONS ?

Reply Like? Yes | No

sravani rachakonda 10 years ago

20 ways is the answer

Like? Yes | No

A SIRISHA 10 years ago

EXPLANATION PLEASE

Like? Yes | No

Ramakrishna 10 years ago

Q: The number of students in each section of a school is 24. After admitting new students three new sections were started. Now the total number of sections is 16 and there are 21 students in each section. The number of new students admitted is? I NEED COMPLETE SOLUTION PLS HELP ME

Reply Like? Yes (26) | No (7)

Nithiya 10 years ago

before joining the new stds, total no of section would be 13
total no.of stds is 13*21=312
after admitting few std,total no of section is 16
now the total would be 16*21=436
so,no of new comers is 436-312=124

Like? Yes (6) | No (13)

A SIRISHA 10 years ago

number of new students admitted is = 24

Like? Yes (4) | No (7)

Anish. 10 years ago

Per section before joining= 24
No. Of sections before joining = 13
Then total no. Of students before joining = 24*13=312
No. Of sections added after joining = 13+3=16
No. Of students per section after joining = 21
Then total no. Of students after joining= 16 * 21=336
So, total no. Of students joined = 336-312=24

Like? Yes (7) | No

A SIRISHA 10 years ago

A MAN HAS 40 KG OF TEA , A PART OF WHICH HE SELLS AT 5 % LOSS AND THE REST AT THE COST PRICE . IN THIS BUSINESS HE GETS A LOSS OF 3 % . FIND THE QUANTITY WHICH HE SELL AT THE COST PRICE ?

Reply Like? Yes (13) | No

Bala 10 years ago

16 kg is ans
5% of x =3% of 40
5% of x = 1.2
x= 1.2 * 100/5
x = 24
ans. = 40-24=16

Like? Yes (6) | No (1)

Abhishek Agarwal 10 years ago

This question can be solved with the help of alligation.
Some part is sold at a loss of 5% hence it is written as -5%.
In other their is neither loss nor profit hence other is 0.
Now he has an overall loss of 3% hence resultant is -3%.
-5 0
/
-3
/
(0 - (-3)) (-3 - (-5))

So ratio of selling is 3:2.
Part he sold at cost price is 2_ * 40 = 16 KG
5

Like? Yes (5) | No

Rajitha 10 years ago

Let CP be costing price and x be the quantity sells at CP
given loss=3%
ie 3/100=(40*CP-(x*CP+(40-x)0.95*CP))/40*CP
x=16

Like? Yes (2) | No

A SIRISHA 10 years ago

THE COST OF HORSE AND A COW IS IN THE RATIO 3:5 . A TRADER GAINS 15 % ON THE HORSES AND LOSSES 10 % ON THE COW BY SELLING THEM. HIS OVERALL GAIN OR LOSS IS ?

Reply Like? Yes (9) | No

A SIRISHA 10 years ago

BY USING FALSE WEIGHT A TRADER GAINS 100/19 % BY CLAIMING TO SELL AT COST PRICE . WHAT WEIGHT DID HE ACTUALLY USE FOR A KG WEIGHT ?

Reply Like? Yes (13) | No

A SIRISHA 10 years ago

A GRAIN DEALER CHEATS TO THE EXTENT OF 10 % WHILE BUYING AS WELL AS SELLING , BY USING FALSE WEIGHTS . HIS TOTAL GAIN % IS ?

Reply Like? Yes (3) | No (1)

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