Q 51. A rectangular tank can hold k liters of water. How many liters of water can a tank with all its dimensions double that of the first one

hold?

A. 2k liters

B. 23 liters

C. 4k liters

D. 6k liters

• it is rectanguar and only rectanguar dimenxion get double
  that is only length and breadth so
  previously l*b*h
  now 2l*2b*h
  so 4k
• 11 years agoHelpfull: Yes(28) No(10)
• ans will be 2^3k ie 8k
  
• 11 years agoHelpfull: Yes(24) No(16)
• 8k since its a cuboid
  initially it ll b holding lbh
  after altering its l b & h as 2l , 2h & 2l it will b 8lbh
  
• 10 years agoHelpfull: Yes(13) No(1)
• given-l*b*h=k this is equation 1,so,according to ques-2l*2b*2h=2(l*b*h),from eq 1,answer is 2k..
• 10 years agoHelpfull: Yes(8) No(34)
• 4k
  depth will be same so
  2l*2*b*h=4*lbh=4k
• 11 years agoHelpfull: Yes(6) No(2)
• it is clearly mentioned that all it's dimensions are doubled. But 8K is not in answer's list. I don't understand why?
• 10 years agoHelpfull: Yes(6) No(2)
• If dimensions of rectangular doubled then holding capacity can increase 4 times
  so the ans is 4K liters
• 11 years agoHelpfull: Yes(4) No(4)
• first tank dimension is k
  second tank dimension is 2k*2=4k
  water volume=4k
• 11 years agoHelpfull: Yes(1) No(6)
• area of rect tank = capacity of tank;
  l*b=K litres;
  dimensions double-----> 2l,2b;
  now area= 2l*2b;
  = 4(l*b);
  =4k litres....
  
• 9 years agoHelpfull: Yes(1) No(2)
• Let dimensions of tank are x × y × z = xyz.
  
  So xyz can hold k liters of water.
  
  Now dimensions are doubled i.e 2x × 2y × 2z=8xyz
  
  As xyz holds k liters, so 8xyz will hold 8 × k = 8k liters of water.
• 4 years agoHelpfull: Yes(1) No(0)
• ans will be 2k
• 11 years agoHelpfull: Yes(0) No(18)
• among these many solutions which is correct
• 8 years agoHelpfull: Yes(0) No(0)
• 4k is correct ans
• 8 years agoHelpfull: Yes(0) No(1)
• are of rectangular tank= A=whl where w=width,h=height,l=length
  now when all its dimensions double that of the first one the are of rectangular tank =
  A=2w * 2h * 2l
  =8whl
  =8k [ as whl = k given ]
• 8 years agoHelpfull: Yes(0) No(1)
• If dimensions of rectangular doubled then holding capacity can increase 4 times so the ans is 4K liters.
• 7 years agoHelpfull: Yes(0) No(0)