A > C -----(i), B > D -----(ii), E < B --------(iii), E > C ---------(iv), C > D ---------(v)
from (i) and (v), we get A > C > D ---------(I)
from (iii) and (iv), we get B > E > C --------(II)
From (I) and (II) , it is clear that 'D' is the thinnest.
The 2nd, 5th and 8th digits of the number 31549786 are 1, 9 and 6 respectively.
The perfect square of a two - digit even number, formed using the digits 1, 9 and 6 is 196.
And, 14 x 14 = 196
So, the required even number is 14. Clearly, its second digit is 4.
Hence, the answer is (b).
5th to the right of 12th digit from the right end means (12 - 5 = ) 7th digit from the right.ie 3.
The given series when written in reverse order becomes:
13, 11, 5, 0, 1, 2, 6, 4, 8, 3, 0, 7, 9, 3, 7
The seventh number from the left is 6, the fourth number to the right of 6 is 0
3 1 7 3 7
3 1 7 3 8
7 1 7 3 9
At these places 1, 7, 3 appeared together
Given Number : 7 6 5 3 4 2 1 8
New Number : 8 7 6 4 5 3 2 9
Ascending Order : 2 3 4 5 6 7 8 9
Fifth digit in the above ascending order arrangement is '6' . Hence option(1) is the correct answer.
Second, fourth and the sixth digits of the number are 3, 1 and 6. Using these digits only once we can make 361, which is a perfect square number. Hence, our answer is 19 x 19 = 361
According to Nitin, Nidhi's birthday falls on Wednesday or Thursday ---------(i)
According to Dheeraj , Nidhi's birthday falls on Thursday or Friday ---------(ii)
From (i) and (ii), Nidhi's birthday falls on Thursday.
Here the series is:
987654321, 87654321, 7654321, 65...
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