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A, B, C എന്നിവരുടെ ഇപ്പോഴത്തെ പ്രായം 1 : 2 : 3 എന്ന അനുപാതത്തിലാണ്. 10 വർഷത്തിന് മുമ്പ് C ക്ക് 50 വയസ്സായിരുന്നു. 10 വർഷത്തിനു ശേഷം A യുടെ പ്രായം എത്രയാകും?

A30

B40

C50

D60

Answer:

A. 30

Read Explanation:

A, B, C എന്നിവരുടെ ഇപ്പോഴത്തെ പ്രായം 1 : 2 : 3 എന്ന അനുപാതത്തിലാണ്. അതായത്,

  • A - 1x
  • B - 2x
  • C - 3x

10 വർഷത്തിന് മുമ്പ്, C ക്ക് 50 വയസ്സായിരുന്നു, അതായത്,

  • 3x – 10 = 50
  • 3x = 60
  • X = 20  

10 വർഷത്തിനു ശേഷം A യുടെ പ്രായം എന്നത്

  • 1x + 10 = 30

 


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