Question 8 - whole numbers

• A delivery company charges $15 for every parcel delivered on time. There is no charge for parcels delivered late. The company will also compensate its customers $5 for every parcel delivered late. In January, the company made a profit of $35,880 after compensating for late delivery of parcels. For every 50 parcels delivered, 3 were late.
• (a) How many parcels were delivered late in January?
• (b) How much money was lost because of late delivery?

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Question 8 - Answer

1 set = 47 delivered parcels + 3 late parcels

        = 47 x 15 - 3 x 5

        = 705 - 15

        = 690

Number of set = 35,880/690 = 52 set

Number of late parcels = 52 x 3 = 156

(a) There were 156 parcels delivered late in January.


156 x ( 5 + 15 ) = 3120

(b) $3120 was lost because of late delivery.

Question 7 - Whole numbers

• Mdm Sim and Mdm Li wrapped a total of 3300 dumplings. Mdm Sim wrapped 5 dumplings for every 6 dumplings that Mdm Li wrapped. They were paid 20 cents for every dumpling wrapped. They earned an extra $2.50 for every 40 dumplings wrapped.
• (a) How many dumplings did Mdm Sim wrap?
• (b) How much did Mdm Sim earn?

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Question 7 - Answer

              Mdm Sim wrapped 5 + Mdm Li Wrapped 6 = 11
             
              3300/11 = 300

              5 x 300 = 1500

             (a) Mdm Sim wrapped 1500 dumplings.

              1500 x 0.2 = 300 (Each dumpling earn 20 cents)

              1500/40 = 37.50 ( units of every 40 dumplings)

               37 x 2.50 = 92.50 ( Earned extra for every 40 dumplings)

               300 + 92.50 = 392.50 ( Total earned)

               (b) Mdm Sim earned $392.50