Question

An investor invested \(1 \over 2\) of his capital at 6%, \(1 \over 4\) at 3% and rest at 5%. If his income after 2 years is 4000, find his capital amount? 
1. Rs 40000
2. Rs 20000
3. Rs 10000
4. Rs 50000

Answer 1

Correct Answer - Option 1 : Rs 40000

Calculation:

Let, Capital be 4R.

Investments as per question,

= 2R × 6% + 1R× 3% + 1R× 5%

 = 20R%

Income after 2 years = 4000

Income after 1 year = 2000

Now, 20R% ⇒ 2000

        100R% ⇒ 10000

So, Capital = 4 × 10000

                  =Rs 40000