In a particular library there are 5 computer clusters open for public use. Each Computer Clusters has 40 Tablets. In the 1st week, 75 tablets are used, while 155 tablets are used in the second week, 30 in the third week & 140 in 4th week. Approximately what fraction of the library's computer facilities are in use per month?

• 1/2
  
  Total number of tablets = 40*5 = 200
  
  Fraction of library's computer facilities used,
  1st week = 75/200 = 3/8
  2nd week = 155/200 = 31/40
  3rd week = 30/200 = 3/20
  4th week = 140/200 = 7/10
  
  Fraction of library's computer facilities used per month
  = (3/8+31/40+3/20+7/10)/4
  =1/2
  
• 10 years agoHelpfull: Yes(61) No(3)
• total no. of tablets=40*5=200
  average no. of tablets used in 4 weeks=(75+155+30+140)/4=400/4=100
  clearly,100 is 1/2th part of 200.
  Hence ans is=1/2.
• 10 years agoHelpfull: Yes(12) No(0)
• (3/8+31/40+3/20+7/10)/4
  =1/2
• 10 years agoHelpfull: Yes(4) No(3)
• answer is 2/3
  because tota5l laptops=33*5=165
  in first week used 75 means 75 out of 165=75/165=15/33
  2nd week 155/165=31/33
  3rd week 30/165=6/33
  4th week 160/165=32/33
  total no of laptops whole month available=33*4=132
  total no of laptops used=15+6+31+32=88
  fraction=88/132=2/3
  
• 10 years agoHelpfull: Yes(1) No(21)
• total tablets = 5*40=200
  total uses = (75+155+30+140)/(4*200)
  ans = 400/800=1/2
• 8 years agoHelpfull: Yes(0) No(0)