P6 Maths - Q2

• kkhing

  5 Sep 09, 08:58

  

• Forbiddensinner

  5 Sep 09, 11:19

  Originally posted by kkhing:

  

  In this case, Tom will always save $20 more than Ryan each month.

  Difference in savings after a few months = $330 - $130 = $200

  Number of months they have been saving up = $200 / $20 = 10  months

  Tom's pocket money = $330 / 10  + $18 = ?

  Ryan's pocket money = $130 / 10  + $18 = ?

• rurumoo

  7 Oct 09, 16:55

  Tom saves $20 more than Ryan each month.

  At the end of a certain number of months, Tom saved $330 and Ryan saved $130

  The difference between this is $200

  
  If T saves $20 more than R each month,

  T will save $200 more than R in 200/20= 10mths

  330 / 10 = 33 (amount Tom saves each month)

  33+18= 51 (Tom's monthly money)

  51-20= 31 (Ryan's month money)

   

  So, Tom recieves 51 monthly and Ryan recieves 31 monthly :D

  Hope i helped!