Answer Posted / sudhanshu kumar

there may be 74 group of consecutive numbers...
1,2,3,4
2,3,4,5
.....
.....
37,38,39,40
and their reverse as
4,3,2,1
5,4,3,2
.....
....
40,39,38,37

total no. of ways to arrange 4 numbers out of 40 = 40 P 4

probability= 1 - ( 2*37 / 40*39*38*37 )
= 29639 /29640

Find perimeter of a trapezium with 3 sides given and distance between parallel sides given.

1662

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modulo(373,7)+round(5.8)+truncat(7.2)-round(3.4) = ? i exactly don't remember the truncate function.but the function was where we skip the '.' part.

1234

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Find the next number in the series 1,2,5,10,,15,22--

1165

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Rohan bought some rice at Rs. 10 per kilogram. He buys 2 kg rice from a ration store at the rate of Rs. 8 per kilogram. He mixes the two type of rice and sells at Rs. 11 per kilogram. He makes 25% profit. What is the ratio of non-ration to ration rice?

1279

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A can do a piece of work in 30 days, which B can do in 20 days. Both started the work but A left 5 days before the completion of the work. It took how many days to complete the work?

1167

---

if a=2, b=3, c=6 Find the value of c/(a+b)-(a+b)/c

1145

---

Find the unit digit of product of the prime number up to 50 ?

1568

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9 cards are there. you have to arrange them in a 3*3 matrix. cards are of 4 colours.they are red,yellow,blue,green. conditions for arrangement: one red card must be in first row or second row.2 green cards should be in 3rd column.Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. At least one green card in each row.

1186

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20% of a 6 litre solution and 60% of 4 litre solution are mixed. What percentage of the mixture of solution ?

1174

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A Lorry starts from Banglore to Mysore At 6.00 a.m, 7.00 a.m, 8.00 a.m.....10 p.m. Similarly another Lorry on another side starts from Mysore to Banglore at 6.00 a.m, 7.00 a.m, 8.00 a.m.....10.00 p.m. A Lorry takes 9 hours to travel from Banglore to Mysore and vice versa.?

1163

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Length and breadth of a rectangle are in ratio 7:5. If length is reduced by 5 and breadth by 2, area reduces by 65. Find length and breadth.

1616

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If a certain computer is capable of printing 4900 monthly credit card bills per hour, while a new model is capable of printing at a rate of 6600 per hour, the old model will take approximately how much longer than the new model to print 10000 bills?

1643

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Each row of letters or numbers has a rule connecting them. Write the next number or letterin the brackets. K , A , J , B , I , C , H , (_ _ _)

1423

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The equivalent compound ratio of 5:6::7:10::6:5

1237

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If the graphs of the equations x + y = 0 and 5y + 7x = 24 intersect at (m, n), then the value of m +n is?

1559

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