a man can dig 2x2x2 well in 1hr.How much time he need to dig 4x4x4 well?
1. 2hrs
2. 4hrs
3. 8 hrs.
4. none of these

• suppose 2*2*2 = 8 units can be dig in 1 hour
  so 1 unit can be dig in 1/8 hour
  so 4*4*4 = 64 unit can be dig in 64/8 hours.
  which is 8 hours.
• 9 years agoHelpfull: Yes(2) No(0)
• ans>8hrs
  
  2*2*2=8 cubic unit
  so,
  4*4*4=64 cubic unit
  so
  64/8=8hrs
• 9 years agoHelpfull: Yes(1) No(1)
• => m1*r1*t1/w1 = m2*r2*t2/w2
  as here rate,man are constant so they ll nt be taken in consideration
  so,
  1/8 = x/64
  hence x that is time is 8
• 9 years agoHelpfull: Yes(0) No(1)