Aptitude - Aptitude- Ratio

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In a certain township;1/5 of the housing units are equipped with cable television, 1/10 of the housing units are equipped with video cassette recorders, and 1/3 of those having cable television have video cassette recorders. what fraction of the housing units have neither cable television nor video cassette recorder?

  • a
  • b
  • c
  • d
  • आपका जवाब गलत है

    cable T.V. =1/5; VCR=1/10\n having both =1/3 of cable T.V.=1/15\n Having either cable T.V. or VCR \n=AEB=B-A-ACB\n=1/10+1/5+1/15\n=(3+6-2)/30=7/30\nhaving neither= 1-7/30=23/30

A certain basketball team that has played 2/3 of its games has a record of 17 wins and 3 losses. what is the greatest number of the remaining games that the team can lose and win at least 3/4 of total games played?

  • a
  • b
  • c
  • d
  • आपका जवाब गलत है

    17 wins 3 losses =20 games \ntotal games =(3/2)*20=30 games \nat least 3/4 wins =at least 23 wins\nmax... losses=7\nalready lost =3\n...........\nmax...permissibly=4\n....

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