Question

the simple intrest on a sum of money at 5% is 48rs for 4 years .Then the simple intrest on same sum of 5 years at 4% is​

Answer 1

Answer :-

Given :-

• Simple interest on sum of money is Rs. 48 at 5% for 4 years.

To Find :-

• Simple interest on same sum at 4% for 5 years

Solution :-

Let's first find sum of money from the given part :-

We are given simple interest, time and rate of interest. So, by simply subtituting the value in formula, we can find sum of money :-

→ SI = P × R × T / 100

→ 48 = P × 5 × 4 / 100

→ 48 = 20P / 100

→ 48 = P / 5

→ P = 48 × 5

→ P = 240

Sum of money = Rs. 240

Now, we have -

• Sum = Rs. 240
• Time = 5 years
• Rate of interest = 4% p.a.

Substituting the value in formula :-

→ SI = P × R × T / 100

→ SI = 240 × 5 × 4 / 100

→ SI = 240 × 20 / 100

→ SI = 24 × 2

→ SI = 48

Simple interest = Rs. 48

Answer 2

Corrected Question:-

• The simple interest on a sum of money at 5% is Rs. 48 for four years. Then the simple interest on the same sum for 5 years at the rate of 4% is_____

Answer :-

Given :-

• Simple interest on a sum of money at 5% is Rs.48 for 4 years.

To Find :-

• Find the simple interest on same sum for 5 years at the rate of 4%.

Solution :-

• Let the sum be, x

• As we know that SI = P×R×T/100
• 48 = x × 5 × 4 /100
• 48 = 20x/100
• 48×100=20x
• 4800= 20x
• x= 4800/20
• x = 240.

$\sf \therefore \: sum = 240$

• Now, we have to find the simple interest on Rs. 240 for 5 years at the rate of 4%

• SI = P×R×T/100
• SI = 240×4×5/100
• SI = 4800/100
• SI = 48

$\sf \therefore \: simple \: interest = 48$

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