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The table below shows the rates of sending letters and postcards through the post office.
Karani sent the following letters and postcards
One letter weighing 15g
Two letters each weighing 120g
Four letters each weighing 550g
Three postcards
How much did he pay for postage?
A. Sh 171.50
B. Sh 115.50
C. Sh 90.50
D. Sh 136.50