.In the year 2002.Britain is reported to have had 4.3m closed-circuit television (CCTV) cameras - one for every 14 people in the country. This scrutiny is supposed to deter and detect crime. In one criminal case, the police intrigue two suspects. The ratio between the ages of the two suspects is 6: 5 and the sum of their ages is 77 years. After how many years will the ratio be 8:7?

• Answer:14 years
  Present age 6x+5x=77 =>x=7.
  so 6(7):5(7)=42:35
  8(7):7(7)=56:49
  so the difference present age and future age is 14 for both peoples.
  so After 14 years the suspect ratio 6:5 is changed 8:7
• 12 years agoHelpfull: Yes(34) No(0)
• Answer:14 years
  the ratio between two people is 6:5
  let,1st people=6x
  2nd people=5x
  6x+5x=77
  => 11x=77
  => x=7
  age of 1st people=6*7=42
  age 0f 2nd people=5*7=35
  let,after y years will the ratio be 8:7
  42+y/35+y=8:7
  =>294+7x=280+8X
  =>x=14
• 12 years agoHelpfull: Yes(3) No(1)
• 6x+5x=77
  => x=7
  present age=6*7,5*7 i.e., 42 and 35 (42+35=77)
  8*7= 56 and 7*7 =49
  this will be after 56-42 years i.e., 14 years
• 12 years agoHelpfull: Yes(1) No(0)