• Placement Questions
• /
• Cat

Frequently Asked cat Latest Exam Pattern - cat Sample Question with Solutions Page 100

(#M40003421) CAT QUESTION Keep an EYE

How many perfect squares are there in between 5000 and 8000.
(Ex. 4 is the perfect sq of 2)

Asked In CAT kshitij (14 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (1)   (3) Submit Your Solution

(#M40003292) CAT QUESTION Keep an EYE

Both roots of Quadratic eqn x^2-49x+a=0 are prime numbers. How many different values of a are possible?and what is/are the value of a may be possible?

Asked In CAT arjun (14 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (0)   (0) Submit Your Solution

(#M40003263) CAT QUESTION Keep an EYE

What is the smallest 10 digit number which is composed by 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and can be evenly divided by 11? IS THERE ANY COMMON APPROACH TO SOLVE THIS QUESTION PLEASE EXPLAIN ?

Solution

The number is 1024375869
Sum of all even digits = 0+4+7+8+9 = 28
Sum of all odd digits = 1+2+3+5+6 = 17
Difference = 28-17 = 11
If difference is a multiple of 11 then the number will definitely be divided by 11,
(Here we have to remember one thing also that arrangement of digits should be in such a manner that smaller digits could be used before the greater digits)
If question would be based on the greatest number then number should be
9876524130

Like manish sir answer on facebook.

Asked In CAT arjun (14 years ago)

Solved

Is this Puzzle helpful?   (4)   (0) Submit Your Solution

(#M40002963) CAT QUESTION Keep an EYE

What is the total number of ways of selecting twenty balls from an infinite number of blue, green and
yellow balls?
(a) 320 (b) 203 (c) 231 (d) 1771

Solution

the answer are wrong
no. of methods to find first ball = 3
similarly no. of methods for second ball = 3
so answer for selecting 20 balls = 3^20

Like manish sir answer on facebook.

Asked In CAT Nitish Kumar (14 years ago)

Solved Read Solution (1)

Is this Puzzle helpful?   (6)   (2) Submit Your Solution

(#M40002245) CAT QUESTION unsolved Keep an EYE

A geographic area with an altitude of 400 metres has following characteristics:
Month J F M A M J J A S O N D
Average
maximum temp.
0C
31 31 31 31 30 30 29 28 29 29 30 31
Average
minimum temp.
0C
21 21 21 21 21 21 20 20 20 20 20 20
Rainfall (mm) 51 85 188 158 139 121 134 168 185 221 198 86
If this geographic area were to have a natural forest, which one of the following would
it most likely be?
(a) Moist temperate coniferous forest
(b) Montane subtropical forest
(c) Temperate forest
(d) Tropical rain forest

Asked In CAT himanshu arora (14 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (7)   (4) Submit Your Solution