Question

Deepa goes to a post office to post letters and parcels, the postal rates are letter weighing in 20g or less 5.00,
per every additional 20g 2.00 rs.
For parcel weighing 50g or less 5.00 rs
For every additional 50g 3.00rs.
Deepa wants to send 2 parcels weighing 250g and 300g resp and 2 letters each to 20g and 35g resp. How much postal charge does she have to pay?

Answer 1

Answer:

43.5

Step-by-step explanation:

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Answer 2

Answer:

40.5

Step-by-step explanation:

We need to calculate the total postal charge for the parcel and the letter

She needs to do 2 parcels of 250g and 300g respectively

the postal charge for 250g parcel are:

for 50g=5Rs, for next 50g=3Rs

Therefore for additional 200g=$3\times4=12$

Total postal charge for 250g=$12+5=17$

Now, the postal charge for 300g parcel=$5+3\times5=20$

Therefore the total parcel charge she has to pay=20+17=37

Now the charges for the letter would be

for the 1st letter of 20g=2Rs

for the 2nd letter of 35g=$\dfrac{2}{4}\times3=1.5$

Therefore the total charge for the letter=2+1.5=3.5

Now the total postal charge she has to pay=3.5+37=40.5