Question

Ritam invests her 25 % of her annual income in national saving certificate and 20 % in kisan vikas patra and remaining 2,00,000 rupees are used for family maintenance . what is her annual income .​

Answer 1

Answer:

Step-by-step explanation:

Annual income = Rs. 4000000/11

Solution:

Let the annual income = Rs. x

Investment in NSC = Rs. ( 25% of x )

= Rs. x * 25/100

= Rs. x/4 ,

investment in KVP = Rs. ( 20% of x )

= Rs. x * 20/100

= Rs. x/5 and

uses for family = Rs. 200000

Since there is no savings, total spending is the total income. Then

x = x/4 + x/5 + 200000

or, x = (5x + 4x)/20 + 200000

or, x - 9x/20 = 200000

or, (20x - 9x)/20 = 200000

or, 11x/20 = 200000

or, 11x = 20 * 200000

or, x = 4000000/11

∴ annual income is Rs. 4000000/11