Question

find the simple interest and the amount in this cases
1. principle is equal to rupees 4000 rate is equal to 7.25% P A and time 4 years and 6 months​

Answer 1

Given:

• principle is equal to rupees 4000 rate is equal to 7.25% and time 4 years and 6 months.

To Find:

❶ simple interest.

❷ Amount.

_____________________

Analysis:

➷ 1 year has 12 months

➷so, 6 months equals half year

➷hence 4 years 6 months can be denoted as 4.5 years

Solution:

now, as per the given values to find simple intrest we use the formula :

$\tt \blue{simple \: intrest = \frac{p \times t \times r}{100} }$

let's evaluate now:

$: \implies \sf \: simple \: interst = \frac{4000 \times 7.25 \times 4.5}{100} \\ \\ \\ : \implies \sf \: simple \: interst = \frac{40 \cancel{00} \times 7.25 \times 4.5}{ \cancel{100} } \\ \\ \\ : \implies \sf \: simple \: interst = 40 \times 7.25 \times 4.5 \: \: \: \: \: \\ \\ \\ : \implies \sf \: simple \: interst = rs.1305 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$\orange{ \underline {\tt{ \therefore \: simple interest = rs.1305}}}$

Amount:

➸ Amount equals principal + simple interest

➸Amount = 4000+1305

$\sf{\blue{\underline{Amount = 5305}}}$

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hope this helps.!

Answer 2

Given:

★principle is equal to rupees 4000 rate is equal to 7.25% and time 4 years and 6 months.

To Find:

★simple interest amd amount ★

_____________________

➺1 year has 12 months

➺so, 6 months equals half year

➺therefore,4 years 6 months can be denoted as 4.5 years

Solution:

★now, as per the given values to find simple intrest we use the formula★ :

$\tt \pink{simple \: intrest = \frac{p \times t \times r}{100} }$

let's start

$: \implies \sf \: simple \: interst = \frac{4000 \times 7.25 \times 4.5}{100} \\ \\ \\ : \implies \sf \: simple \: interst = \frac{40 \cancel{00} \times 7.25 \times 4.5}{ \cancel{100} } \\ \\ \\ : \implies \sf \: simple \: interst = 40 \times 7.25 \times 4.5 \: \: \: \: \: \\ \\ \\ : \implies \sf \: simple \: interst = rs.1305 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$\green{ \boxed {\sf{ \therefore \: simple interest = rs.1305}}}$

Amount:

↬Amount equals principal + simple interest

↬Amount = 4000+1305

$\sf{\pink{\underline{Amount = 5305}}}$

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$\sf \pink{ - aureate \: aura}$