Latest CAT Aptitude Question SOLUTION: Using the most powerful telescope ever made, scientists observe a class of young aliens on a planet millions of light years away. On the blackboard, their teacher has written thes

• Placement Papers
• /
• CAT

CAT Question Papers:

(#M40010264) CAT question Keep an EYE

Using the most powerful telescope ever made, scientists observe a class of young aliens on a planet millions of light years away. On the blackboard, their teacher has written these equations: 13 + 15 = 31, 10 x 10 = 100, 6 x 3 = 24 How many fingers do they have? (We count in base ten. What do they count in?)
(Highlight to show)
Answers :
1) 13/4
2) 729
3) 7

Asked In CAT prashanthi (11 years ago)

Unsolved Read Solution (1)

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

Read Solution (1) :

chaitanya sai kumar  (11 years ago)

they have 7 fingers

10 x 10 will always be 100 in any base system so let's take the other two.

Excluding the "10" in the numbers of the first equation, the only way 5 + 3 (8 base 10) is "11" is to take away 1 and the rest is the base, ergo they count 1, 2, 3, 4, 5, 6, 10.

The same with the 6 * 3 is 24.

111111
111111
111111

take 1 "1" from the last row to make "10" in each of the other two which makes 24 base 7

Is this solution Helpfull? Yes (1) | No (1)  

Please Login to Read Solution.