To decide whether a number of n digits is divisible by 7, we can define a process by which its magnitude is reduced as follows:(q,i2, i3....are the digits of the number, starting from the most significant digit). i1i2….in  i1.3n-1 + i2.3n-2 +....+ In3°. e.g. 259  2.32+5.31 + 9.3°= 18 +15 + 9 = 42 Ultimately the resulting number will be seven after repeating the above process a certain number of times. After how many such stages, does the number 203 reduce to 7

1.  2

2.  3

3.  4

4.  1

View Answer  
4
Correct Answer :

2


Explanation :
No Explanation available for this question

A third standard teacher gave a simple multiplication exercise to the kids. But one kid reversed the digits of both the numbers and carried out the multiplication and found that the product was exactly the same as the one expected by the teacher. Only one of the following pairs of numbers will fit in the description of the exercise. Which one is that

1.  14,22

2.  13,62

3.  19,33

4.   42,28

View Answer  
4
Correct Answer :

13,62


Explanation :
No Explanation available for this question

If 8+12 = 2,7 + 14 =3 then 10+18=

1.   10

2.  4

3.  6

4.  18

View Answer  
4
Correct Answer :

 10


Explanation :
No Explanation available for this question

Find the minimum integral value of n such that the division 55n/124 leaves no remainder.

1.  124

2.  123

3.  31

4.   62

View Answer  
4
Correct Answer :

124


Explanation :
No Explanation available for this question

What is the value of k for which the following system of equations has no solution:2x- Sy = 3; and kx + 4y = 10.

1.  -2

2.  1

3.  -1

4.   2

View Answer  
4
Correct Answer :

-1


Explanation :
No Explanation available for this question

A positive integer is said , to be a prime if it is not divisible by any positive integer other than itself and one. Let p be a prime number strictly greater than 3. Then, when p2 + 17 is divided by 12, the remainder is

1.  6

2.  1

3.  0

4.  8

View Answer  
4
Correct Answer :

6


Explanation :
No Explanation available for this question

A man sells chocolates that come in boxes. Either full boxes or half a box of chocolates can be bought from him. A customer comes and buys half the number of boxes the seller has plus half a box. A second cus-tomer comes and buys half the remaining number of boxes plus half a box. After this, the seller is left with no chocolates box. How many chocolates boxes did the seller have before the first customer came

1.  2

2.  3

3.  4

4.   3.5

View Answer  
4
Correct Answer :

3


Explanation :
No Explanation available for this question

X and Y are playing a game. There are eleven 50 paise coins on the table and each player must pick up at least one coin but not more than five. The person picking up the last coin loses. X starts. How many should he pick up at the start to ensure a win no matter what strategy Y employs

1.  4

2.   3

3.  2

4.   5

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

If a < b, which of the following is always true

1.  a

2.  a < ab/2 < b

3.  a < b2 - a2 < b

4.   a< ab

View Answer  
4
Correct Answer :

a <(a + b) /2< b


Explanation :
No Explanation available for this question

The money order commission is calculated as follows. From Rs. X to be sent by money order, subtract 0.01 and divide by 10. Get the quotient and add 1 to it, if the result is Y, the money order commission is Rs. 0.5 Y. If a person sends two money orders to Aurangabad and Bhatinda for Rs. 71 and Rs. 48 respectively, the total commission will be

1.  Rs. 7.00

2.  Rs. 6.50

3.  Rs. 6.00

4.   Rs. 7.50

View Answer  
4
Correct Answer :

Rs. 6.50


Explanation :
No Explanation available for this question
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