Math, asked by dhaliwalkaran897, 3 days ago

On an amount simple interest of 1.5 years at 8% per annum is Rs. 420. Find the principal. *​

Answers

Answered by khurshidmalikdtl
7

simple interest = p×r×t

100

420=p×8×1.5

100

420000=p×120

420000÷120=p

3500=p

prinicipal = 3500

Answered by amitnrw
1

Principal of Rs 3500 gets a simple interest of Rs 420 in 1.5 years at 8% per annum.

Given:

  • Simple interest of 1.5 years at 8% per annum is Rs. 420.

To Find:

  • The principal

Solution:

  • SI = P x R x T /100
  • SI = Simple Interest
  • P = Principal
  • R = Rate of Interest per annum in %
  • T = Time in Years

Step 1:

Use the formula for SI and substitute SI = 420 , R = 8 and T = 1.5

=> 420 = P x 8 x 1.5/100

=> 420 = 12P/100

Step 2:

Solve for P

420 x 100  = 12P     ( Multiply both sides by  100)

35 x 100  =  P     ( Divide both sides by  12)

3500 = P

Principal of Rs 3500 gets a simple interest of Rs 420 in 1.5 years at 8% per annum.

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