Pri 6 maths problem sums 3

• Lxlim

  9 Jun 10, 22:05

  Hi,me again

  I have some maths problems sums to ask all of u.

   

  Q1)132 people went for dinner.1/2 of them paid $40.60 each and 2/3 of the remainind people paid $50 each.The rest paid $55.20. the organisers realised that the were still short of $110.

  (a)What was the total cost of the dinner?

  (b)If everyone shared the cost of the dinner equally,how much should each person pay?

   

  Q2)Machine A can pack 7500 biscuit a day.This is 240 fewer biscuit a than what machine B can pack in a day.20 biscuit are placed in a packet and every packet 1000 packets of biscuit are placed in a box.If both machine are used,how many packets of biscuits will  there be after a week?

   

  Q3)James is 8 years old.Last year,his father was 4 times as old as he was.In how many years' time will their combined age be 51? 

   

   

  Thanks for helping me!

  LXLIM

• LHDW

  9 Jun 10, 22:19

  Q1) a)1/2 x 132 = 66 - The amount of people paying $40.60

  66 x 40.60 = 2679.6 - The total amount paid by them

  2/3 x 66 = 44 - The amount of people paying $50

  44 x 50 = 2200 - The total amount paid by them

  132 - 66 - 44 = 22 - The total amount of people paying $55.2

  22 x 55.2 = 1214.4 - The total amount paid by them

  1214.4+2200+2679.6+110= 6204 - Total money

  b) 6204/132 = 47 -Average

   

  Q2) Could you rephrase it please, I have no idea what the question is about.

  Q3) I'm just curious, have you learnt factorization? 

   

• baiyun

  11 Jun 10, 08:55

  Hi

  Hope this helps.

  Best wishes