CAT4MBA

32. C
33. C

Hey anita can I have the solutions please

Thanks

What is the value of ‘k’ for which the following system of equations has no sloution?
2x - 8y = 3 ; kx + 4y = 10

ANS:

2/k = -8/4

=> k = -1

HOW CAN YOU CHECK PERCENTILE..........

We ‘ll count from out side rectangle that is 1 2 3 4 5 10 15 20 . . .11 6 And will consider handshakes only with next inner side i.e 7 8 9 . .17 12. There by we ‘ll avoid counting the same hand shake twice.

First consider the students standing at 4 corners 1, 5, 25 and 21.

Hand shakes = 4 (1 with 7, 5 with 9 and so on)

6, 11, 16 ‘ll have 2 hand shakes each = 6

2 one hand shake | 3 & 4 ‘ll have 2 hand shakes each = 5

10 one hand shake | 15 & 20 ‘ll have 2 hand shakes each = 5

23 two hand shakes | 22 & 24 ‘ll have 1 hand shake each = 4

Next let’s go to the second rectangle

First the four corners

7, 9, 19, 17 ‘ll have 1 hand shake each = 4

12= 2 , 8 = 1 and 14 = 1 hand shakes Total = 4

So possible number of hand shakes = 4 + 6 + 5 + 5 + 4 + 4 + 4 = 32

please solve Q48

The unit digit in the product (5 + 1)(5³+ 1)(5⁶ + 1)(5¹² + 1) is

unit digit of 5 to any power is always 5

so uint digit of each of the term (5 + 1), (5³+ 1), (5⁶ + 1), (5¹² + 1) is 6

and (any number of digits)6 x (any number of digits)6 = (Something)6

Answer 6

where I can get the question

what is the link for the mock

The link is on frontpage. .any how itz

http://www.cat4mba.com/mockcat02