600 students took the test on physics and chemistry. 35% students failed in physics and 45% students failed in chemistry and 40% of those who passed in chemistry also passed in physics, then how many students failed in both:

  • Option 1)

    162

  • Option 2)

    138

  • Option 3)

    60

  • Option 4)

    none

  • Option 5)

    120

In a factory there are three types of Machines M1 , M2 and M3 which produces 25%, 35% and 40% of the total products respectively. M1, M2 and M3 produces 2% , 4% and 5% defective products, respectively. What is the percentage of non-defective products?

  • Option 1)

    89%    

  • Option 2)

    87.07%

  • Option 3)

    96.1%

  • Option 4)

    86.1%

  • Option 5)

    97.1%

Each edge of a cube is increased by 20% then the percentage increase in surface area of the cube is : 

  • Option 1)

    39%

  • Option 2)

    40%    

  • Option 3)

    44%

  • Option 4)

    72.8%

  • Option 5)

    144%

A housewife saved Rs. 2.50 in buying an item on sale. If she spent Rs. 25 for the item, approximately how much percent she saved in the transaction ?

  • Option 1)

    5

  • Option 2)

    9

  • Option 3)

    10

  • Option 4)

    11

  • Option 5)

    8

Gaurav spends 30% of his monthly income on food articles, 40% of the remaining on conveyance and clothes and saves 50% of the remaining. If his monthly salary is Rs.18,400, how much money does he save every month?

  • Option 1)

    3864

  • Option 2)

    4903

  • Option 3)

    5091

  • Option 4)

    6789

  • Option 5)

    5849

Fresh fruit contains 68% water and dry fruit contains 20% water. How much dry fruit can be obtained from 100 kg of fresh fruits ?

  • Option 1)

    20

  • Option 2)

    60

  • Option 3)

    40

  • Option 4)

    50

  • Option 5)

    30

Out of a no. of electronic items, a person purchases 60% colored TVs 5% of these were found to be defective. The percentage of defective TVs in all is

  • Option 1)

    3%

  • Option 2)

    6%      

  • Option 3)

    10%

  • Option 4)

    can’t be determined

  • Option 5)

    12%

An alloy contains the copper and aluminum in the ratio 7:4. While making the weapons from this alloy, 12% of the alloy get destroyed. If there are 12 kg of aluminum in the weapon, then the weight of the alloy required is :

  • Option 1)

    45kg

  • Option 2)

    40kg

  • Option 3)

    37.5 kg

  • Option 4)

    14.4 kg

  • Option 5)

    48 kg

 

Dell computers has two branches : One in ohio and second in texas : The total no. of employees on ohio office grew this year by 25% to 750 but the ratio of male to female employee is same as in the previous year. The no. of employees in the Texas office grew this year by 9.09% to 1200. The ratio of male to female employees last year in texas office was 5:6 and the number of male employees in the ohio office was 20% less than that of texas office.

The total number of female employees this year in both the offices is:

 

  • Option 1)

     

    654

     

  • Option 2)

     

    659

     

  • Option 3)

     

    950

     

  • Option 4)

     

    can’t be determined

     

  • Option 5)

     

    546

     

A shepherd had n goats in the year 2000. In 2001 the no. of goats increased by 40%. In 2002 the no. of goats declined to 70%. In 2003 the no. of goats grew by 30%. In 2004, he sold 10% goats, and then he had only 34398 goats. In which year the no. of goats was minimum?

  • Option 1)

    2001

  • Option 2)

    2007

  • Option 3)

    2004

  • Option 4)

    2003

  • Option 5)

    No idea

A jar full of whisky contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26%. The quantity of whisky replaced is:

  • Option 1)

    1/6

  • Option 2)

    2/3

  • Option 3)

    2/5

  • Option 4)

    3/5

  • Option 5)

    1/3

A dishonest grocer professes to sell pure butter at cost price, but he mixes it with adulterated fat and thereby gains 25%. Find the percentage of adulterated fat in the mixture assuming that adulterated fat is freely available.

  • Option 1)

    20%

  • Option 2)

    30%

  • Option 3)

    33.33%

  • Option 4)

    40%

  • Option 5)

    25%    

A housewife has 11 litre of solution that contains milk and water in the ratio 3:1. She adds 250 ml of 3:2 solution of milk and water to it and then uses 250 ml of the combined mixture to make curd. How much of pure milk is she left with?

  • Option 1)

    1,000 ml

  • Option 2)

    7250 ml

  • Option 3)

    7500 ml

  • Option 4)

    7200 ml

  • Option 5)

    9125 ml

A trader has 50 kg of rice, a part of which he sells at 10 percent profit and the rest at 5 per cent loss. He gains 7 per cent on the whole. What is the quantity sold at 10 percent gain and 5 percent loss?

  • Option 1)

    45kg, 20 kg

  • Option 2)

    40kg, 15 kg

  • Option 3)

    35kg, 40 kg

  • Option 4)

    40 kg, 10 kg

  • Option 5)

    30kg, 10 kg

A jar full of milk contains 40% water. A part of this milk is replaced by another containing 19% water and now the percentage of water is found to be 26%. The quantity of milk replaced is :

  • Option 1)

    2/3

  • Option 2)

    1/3

  • Option 3)

    3/7

  • Option 4)

    5/8

  • Option 5)

    4/7

The amount of water (in m

A merchant mixes three varieties of corn flakes costing Rs. 40/kg, Rs. 48/kg and Rs. 60/kg and sells the mixture at Rs. 42/kg marking a loss of 16%. How many kg of the third variety (with price of Rs. 60/kg) will be there in the mixture if the total quantity of mixture sold is 16 kg?

  • Option 1)

    10 kg

  • Option 2)

    2 kg

  • Option 3)

    5 kg

  • Option 4)

    Can't be determine

  • Option 5)

    4 kg

 

Anita has a vessel that is full of refined oil. She wants to measure the capacity of the vessel. For this, she takes out 25% of the refined oil from the vessel and then fills the vessel with mustard oil. She repeats the process 4 times and knows that the vessel then contains exactly 10 litres of refined oil. What is the capacity of the vessel?

 

  • Option 1)

     

    33 litres

     

  • Option 2)

     

    40 litres

     

  • Option 3)

     

    2560/81 litres

     

  • Option 4)

     

    None of these

     

  • Option 5)

     

    2460/81 litres

     

From 40 liters of 2 : 3 milk-water solution, 8 liters are withdrawn and replaced by 8 liters of milk. What is the approximately minimum number of times should we perform the operation of withdrawing and replacing so that the milk concentration is at least 60%?

  • Option 1)

    4

  • Option 2)

    3

  • Option 3)

    more\: than\: 3

  • Option 4)

    2

  • Option 5)

    1

A 20 litre mixture of milk and water contains milk and water in the ratio 3 : 2. 10 litres of the mixture is removed and replaced with pure milk and the operation is repeated once more. At the end of the two removals and replacements, what is the ratio of milk and water in the resultant mixture?

  • Option 1)

    17 : 3

  • Option 2)

    9 : 1

  • Option 3)

    3 : 17

  • Option 4)

    14 : 6

  • Option 5)

    5 : 3

There are two mixtures of honey and water, the quantity of honey in them being 25% and 75 % of the mixture. If 2 gallons of the first are mixed with three gallons of   the second, what will be the ratio of honey to water in the new mixture?

  • Option 1)

    11 : 2

  • Option 2)

    11 : 9

  • Option 3)

    9 : 11

  • Option 4)

    4 : 9

  • Option 5)

    2 : 11

Two solutions of 90% and 97% purity are mixed resulting in 21 litres of mixture of   94 % purity. How much is the quantity of the first solution in the resulting mixture?

  • Option 1)

    15\: litres

  • Option 2)

    12\: litres

  • Option 3)

    9\: litres

  • Option 4)

    7\: litres

  • Option 5)

    6\: litres

There are two solutions of sulphuric acid (acid + water) with concentration of 50% and 80% respectively. They are mixed in a certain ratio to get a 62% sulphuric acid solution. This solution is mixed with 6 litres of water to get back 50% solution. How much of the 80% solution has been used in the entire process?

  • Option 1)

    15 litres

  • Option 2)

    12 litres

  • Option 3)

    10 litres

  • Option 4)

    20 litres

  • Option 5)

    None of these

In what ratio should water be mixed with soda costing Rs. 12 per litre so as to make a profit of 25% be selling the diluted liquid at Rs. 13.75 per litre?

  • Option 1)

    10 : 1

  • Option 2)

    11 : 1

  • Option 3)

    1 : 11

  • Option 4)

    1 : 20

  • Option 5)

    12 : 1

 

Ram prepares solutions of alcohol in water according to customer’s needs. This morning Ram has prepared 27 litres of a 12% alcohol solution and kept it ready in a 27 litre delivery container to be shipped to the customer. Just before delivery, he finds out that the customer had asked for 27 litres of 21% alcohol solution. To prepare what the customer wants, Ram replaces a portion of 12% solution by 39%  solution. How many litres of 12% solution are replaced?

 

 

 

 

  • Option 1)

     

    5

     

  • Option 2)

     

    9

     

  • Option 3)

     

    11

     

  • Option 4)

     

    12

     

  • Option 5)

     

    10

     

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