The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs. 20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2:3, then the price per kg of the mixed variety of rice is

1.  Rs. 18

2.  Rs. 18.50

3.   Rs. 19

4.  Rs. 19.50

View Answer  
4
Correct Answer :

Rs. 18


Explanation :
No Explanation available for this question

In how many ways a committee, consisting of 5 men and 6 women can be formed from 8 men and a 10 women

1.  266

2.  5040

3.  11760

4.  86400

5.  None of these

View Answer  
5
Correct Answer :

11760


Explanation :
No Explanation available for this question

In what ratio must a grocer mix two varieties of tea worth Rs.60 a kg and Rs.65 a kg so that by selling the mixture at Rs. 68.20 a kg be may gain 10%

1.  3:2

2.   3:4

3.  3:5

4.  4:5

View Answer  
4
Correct Answer :

3:2


Explanation :
No Explanation available for this question

From a group of 7 men and 6 women, five persons are to be selected to form a committees so that   at least 3men are there on the committee. In how many ways it can be done

1.  564

2.  645

3.  735

4.  756

5.  None of these

View Answer  
5
Correct Answer :

756


Explanation :
No Explanation available for this question

How many kilograms of sugar costing Rs.9 per kg must be mixed with 27 kg of sugar costing Rs.7 per kg so that there may be a gain of 10% by selling the mixture at Rs.9.24 per kg

1.  36 kg

2.  42 kg

3.  54 kg

4.  63 kg

View Answer  
4
Correct Answer :

63 kg


Explanation :
No Explanation available for this question

In a group of 6 boys and 4 girls .four children are to be selected. In how many different ways can they be selected such that at least one boy should be there

1.  159

2.  194

3.  205

4.  209

5.  None of these

View Answer  
5
Correct Answer :

209


Explanation :
No Explanation available for this question

In what ratio must be mixed with milk to gain 16(2/3)% on selling the mixture at cost price

1.  1:6

2.  6:1

3.  2:3

4.  4:3

View Answer  
4
Correct Answer :

1:6


Explanation :
No Explanation available for this question

A box contains 2 white balls,3 black balls and 4 red balls, In how many ways can 3 balls be drawn from the box,  at least  some black ball is to be included  in the draw

1.  32

2.  45

3.  64

4.  95

5.  None of these

View Answer  
5
Correct Answer :

64


Explanation :
No Explanation available for this question

A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is

1.  4%

2.   6(1/4)%

3.   20%

4.  25%

View Answer  
4
Correct Answer :

20\%


Explanation :
No Explanation available for this question

What will be the cost of painting the four walls of a room with length, width and height 5m, 3m and 8 m respectively The room has one door and one window. I. Cost of painting per sq. m is Rs. 25. II Area of window is 2.25 sq. m which is half of the area of the door. III. Area of the room is 15 sq. m

1.  I only

2.  II only

3.  III only

4.  II or III only

5.  All I, II and III are required

View Answer  
5
Correct Answer :

All I, II and III are required


Explanation :
No Explanation available for this question
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