Latest TCS Aptitude Question SOLUTION: Kishore wrote a three-digit number abc, in the decimal system, on a board. Rajesh wrote the same number in base 7 and got the units digit as 5. Rakesh wrote the same number in base

• Placement Papers
• /
• TCS

TCS Question Papers: TCS Interview Experience(90) TCS Company Profile

(#M40013243) TCS question Keep an EYE

Kishore wrote a three-digit number abc, in the decimal system, on a board. Rajesh wrote the same number in base 7 and got the units digit as 5. Rakesh wrote the same number in base 6 and got the units digit as 4. Praneeth wrote the same number in base 5 and got the units digit as 3. If the number written by Kishore is in between 600 and 800, in which of the following ranges does the number abc lie?
a- 601-610
b- 661-670
c- 721-740
d- 611-630

Asked In TCS swati singh (11 years ago)

Unsolved Read Solution (2)

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

Read Solution (2) :

Piyush Jain  (11 years ago)

the number is 628
it lie in range (d) 611-630
solution
let the number is divisible by 7,6,5
lcm of them are = 210
according to range given 600 - 800 the no. perfect divisible by 7,6,5 is 630
now 630/7=90 , 630/6=105 ,630/5=126
so no=7*89+5=628
6*104+4=628
5*124+3=628
hence no is 628

Is this solution Helpfull? Yes (15) | No (1)  

Ankita Agarwal  (11 years ago)

anki3121@gmail.com
plz send me the material .. I m preparing for it.

Is this solution Helpfull? Yes | No (2)  

Please Login to Read Solution.