please give the answer please
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Answer:
a) Simple interest = 128
b) simple interest = 12600
Step-by-step explanation:
Simple interest = (P x R x T )/ 100
a) P = 640 , R = 10% , T = 2 years
S.I. = (640 x 10 x 2)/ 100
= 64 x 2
S.I. = 128
b) P = 10000, R = 18% , T = 7 years
S.I. = (10000 x 18 x 7)/100
= 100 x 18 x 7
= 12600
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