Question

1. principal = * 7200, rate = 7% p.a. and time = 5 months
2. principal = 1500. rate = 12% p.a. and time = 4 years 3 months .​

Answer 1

Step-by-step explanation:

7200×7/100=504 p.a.

then, 504÷12(month)=42 per month

after, 42× 5(month) = 210....

Answer 2

Step-by-step explanation:

SI=PRT/100

$1.= \frac{7200 \times 7 \times \frac{5}{12} }{100 } \\ = 72 \times 7 \times \frac{5}{12} \\ = \frac{2520}{12} \\ = 210 \\ \\ \\ </p><p>2. = \frac{1500 \times 12 \times 4\frac{3}{12} }{100 } \\ = 15 \times 12 \times 4 \frac{1}{4} \\ = 15 \times 12 \times \frac{17}{4} \\ = \frac{3060}{4} \\ = 765$

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