Akhilesh, Bernard, Catherine and Dinesh go for a picnic. In a
weighing machine they try to find
their weights. When Akhilesh stands on the machine, without his knowledge Bernard also
climbs the machine and the weight shown was 132kg. When Bernard stands, without his
knowledge Catherine also stands on the machine and
the machine shows 130 kg. Similarly the
weight of Catherine and Dinesh is found as 102 kg and that of Bernard and Dinesh is 116 kg.
What is the weight of Dinesh?
a)44 kg
b)58 kg
c)78 kg
d)Cannot be determined from the given information

• A+B=132
  B+C=130---eq1
  C+D=102---eq2
  B+D=116---eq3
  by solving eq1,2 &3
  D=44 kg
• 10 years agoHelpfull: Yes(13) No(0)
• A+B=132...............eq1
  B+C=130..........eq2
  C+D=102.........eq3
  B+D=116............eq4
  then add eq3+eq4
  B+C+2D=218
  THEN PUT THE VALUE OE B+C GET D=44
  
• 10 years agoHelpfull: Yes(5) No(0)
• A+B=132
  B+C=130
  C+D=102
  B+D=116
  Subtract (3) from (4) we get B-D=28. Subtract this from (4) we get D=44.
• 10 years agoHelpfull: Yes(2) No(0)
• A+B=132;----(1)
  B+C=130;-----(2)
  C+D=102;-----(3)
  B+D=116;------(4)
  FROM 3-- C=102-D AND FROM 4 -- B=116-D
  SUB IN EQ 2
  B+C=130 THAT IS
  116-D+102-D=130;
  218-2D=130;
  2D=218-130;
  2D=88;
  D=44;
  SO DINESH AGE IS 44
• 10 years agoHelpfull: Yes(1) No(1)
• x+y=132....(1)
  y+z=130....(2)
  z+k=102....(3)
  y+k=116....(4)
  
  x+y=132
  k+y=116
  - - -
  -----------
  x-k=16...(5)
  
  x+y=132
  z+y=130
  - - -
  ----------
  x-z=2....(6)
  
  x-k=16
  x-z=2
  - - -
  ----------
  z-k=14....(7)
  
  z-k=102
  z-k=14
  - + -
  ----------
  z=44....(ans)
  
  
  
  
• 10 years agoHelpfull: Yes(1) No(1)
• A+B=132
  B+C=130
  C+D=102
  B+D=116
  now...
  B+C+C+D+B+D=130+102+116
  2(B+C+D)=348
  => B+C+D=174
  And we know that B+C=130
  therefore,
  D=174-130
  D=44 option a)
• 10 years agoHelpfull: Yes(1) No(0)
• a+b=132, b+c=130, c+d=102, b+d=116
  hence d=44
• 10 years agoHelpfull: Yes(0) No(0)
• a+b=132->1
  b+c=130->2
  c+d=102->3
  b+d=116->4
  solving 2,4 we get c-d value
  solve it with equati0n 3
  we get d as 44
• 10 years agoHelpfull: Yes(0) No(0)
• Akhilesh+Bernard=132 ->1
  Bernard+Catherine=130 ->2
  Catherine+Dinesh=102 ->3
  Bernard+Dinesh=116 ->4
  by substitute method and solving equations 1,2,3 & 4
  we get dinesh weight is 44kg
  ans:a
• 10 years agoHelpfull: Yes(0) No(0)