i dont know how u solv that but here is my approach

x x x x

y y y y

+ z z z z

---------------------------------

y x x x z

---------------------------------

so we can say that

z = z from zero's place

x = x+y+z; for ten's place so x from both LHS and RHS get cancel and we will get y = -z;

same for hunderads and thousand place

for Ten Thousand place we get y = x+y; i.e. x = 0;

so we get x = 0; y = -z;

Samriti Jindal

Jun 12th, 2006

x=9y=1z=8x=8z=8/19y=x9y=8y=8/9z=9yz=9*8/9z=8/1proved for correctness.

naveen

Jul 13th, 2006

Absolutely fantastic

Your analysis is superb.

SRINIVAS_SRIT

Jul 18th, 2007

R4 R3 R2 R1 x x x x y y y y + z z z z --------------------------------- y x x x z A4 A3 A2 A1 -------------------------------- FIRST EQ: FROM ROW R1 X+Y+Z=10+Z ------>(1) FROM ROW R2: X+Y+Z+1= X+10; THEN Y+Z=9------->(2) FROM ROW R3: SAME AS ABOVE R2 Y+Z=-1; FROM ROW R4: HERE Y VALUE IS 1. SUM OF X,Y,Z IS LESS THEN 20 WHY BECAUSE X,Y,Z VALUES ARE BELOW TEN AND NOT REPEATABLE. *X+Y+Z<20 MEANS 20=10 SO WE CAN GET Y VALUE FROM ROW R4 : Y IS THE CARRY OF (X+Y+Z+1) THIS IS LESS THEN 20 GREATER THAN 10 SO WE CAN TAKE Y=1; SUBSTITUTE Y VALUE IN EQ (1): X+Y+Z=Z+10; 1+X=10; THEN X=9; THEN SUBSTITUTE Y VALUE IN EQ(2): Y+Z=9: 1+Z=9; THEN Z=8: RESULT IS:X=9,Y=1,Z=8.

## How to solve questions which involves arthematic operations on alphabets like xxxx yyyy +zzzz====== yxxxz======

This question is related to Dell Interview## Related Answered Questions