Rajni and Mohini deposited Rs 3000 and
Rs 4000 in a company at the rate of 10% per annum for 3 years and years respectively. The difference of the amounts received by them will be

Given, Rajini deposited 3000 and Mohini deposited 4000 in a company

Rate is 10%

Time = 3year and years

⇒ we know that amount(A) = P + I

⇒ we know that Interest =

=

= 900 for rajhini

And for mohini Principal = 4000

Rate = 10%

Time = years =

I =

= 1000

⇒ A = 4000 + 1000 = 5000

⇒ Difference of amount = 5000-3900 = 1100

⇒ Option A is incorrect as 100 ≠ 1100

⇒ Option B is incorrect as 1000 = 1100

⇒ Option C is incorrect as 900 ≠ 1100

⇒ Option D is correct as 1100 = 1100

Hence, option D is the correct one.