CAT Exam

In a 4-digit number, the sum of the first two digits is equal to that
of the last two digits. The sum of the first and last digits is equal to the third
digit. Finally, the sum of the second and fourth digits is twice the sum of the
other two digits. What is the third digit of the number?
(a) 5 (b) 8
(c) 1 (d) 4

Read Solution (Total 2)

5

1854 is desired number.
11 years agoHelpfull: Yes(2) No(6)

1854
Ans = 8
11 years agoHelpfull: Yes(0) No(6)

CAT Other Question

In a number system the product of 44 and 11 is 2124. The
number 3111 of this system, when converted to the decimal number system,
becomes:
(a) 406
(b) 1086
(c) 213
(d) 691 For a Fibonacci sequence, from the third term onwards, each
term in the sequence is the sum of the previous two terms in that sequence.
If the difference of squares of seventh and sixth terms of this sequence is
517, what is the tenth term of this sequence?
(a) 147 (b) 76
(c) 123 (d) Cannot be determined