Question

4,300 becomes 4,644 in 2 years at simple interest find the principle amount that will become 10,104 in 5 years at same rate of interest ?

Answer 1

Answer:

you have to total them your answer will be 19,408 l hope it helps. thanks.

Answer 2

• The principal amount that will become c) Rs. 8420.

Step-by-step explanation:

• Given that:

Rs. 4,300 becomes Rs. 4,644 in 2 years at simple interest..

• To Find:

The principal amount that will become Rs. 10,104 in 5 years at the same rate of interest.

• Formula used:

S.I. = A - P = (P × R × T)/100

Where,

• S.I. = Simple interest
• A = Amount = Rs. 4,644
• P = Principal = Rs. 4,300
• R = Rate
• T = Time = 2 years
• Finding the rate of interest:

S.I. = 4644 - 4300 = (4300 × R × 2)/100

• ⟶ 344 = 8600R/100

• ⟶ 344 = 86R

• ⟶ R = 344/86

• ⟶ R = 4

∴ Rate of interest = 4% p.a.

Now we have:

• Let Principal be P.
• A = Amount = Rs. 10,104
• R = Rate = 4% p.a.
• T = Time = 5 years
• Finding the principal amount:

S.I. = 10104 - P = (P × 4 × 5)/100

⟶ 10104 - P = 20P/100

⟶ 10104 - P = 2P/10

⟶ 10(10104 - P) = 2P

⟶ 101040 - 10P = 2P

⟶ 101040 = 2P + 10P

⟶ 101040 = 12P

⟶ P = 101040/12

⟶ P = 8420

$∙→$∴ Principal amount = Rs 8,420