Question

Find the sum and difference of the CI and SI on Rs. 1000 for 1 year at 10% per annum.

Answer 1

Answer:

formula=PRT/100

Principle=1000

Time=1year(1 year=12months

Rate=10percent

=1000×12×10/100

=100×12=1200

1200 is the answer.

Answer 2

Step-by-step explanation:

Given:

• Principal is Rs 1000
• Time is 1 year
• Rate is 10% per annum

To Find:

• Sum and Difference of C.I and S.I

Solution:

★ Amount = P ( 1 + r/200)^n ★

→ A = 1000 ( 1 + 10/100)¹

→ A = 1000 ( 110/100)¹

→ A = 1000 x 110/100

→ A = 110000/100 = Rs 1100

∴ C.I = Amount – Principal

→ C.I = Rs ( 1100 – 1000 ) = Rs 100

★ Simple Interest = P x R x T/100 ★

→ S.I = 1000 x 10 x 1/100 = 10000/100

→ S.I = Rs 100

According to the question, We have to sum and Difference between C.I and S.I

★ Sum = C.I + S.I = 100+100 = Rs 200

★ Difference = C.I – S.I = 100–100 = Rs 0