Question

Q.11) Mani's income is equal to the three- fifth of Shiva's annual income. If Mani spends 20% of his monthly income for household purpose, 25% of remaining on transportation and 30% of rest on food and the remaining amount he has is Rs.8400, what is the annual income of 25/ Shiva? a) Rs.5,00,000 b) Rs.3,60,000 c) Rs.4,00,000 d) Rs.4,20,000 e) Rs.4,80,000​

Answer 1

Rs. 4,00,000 is the annual income of Shiva.

Step-by-step explanation:

Let Shiva's income be x

so, Mani's income will be = 3x/5          (given)

Mani's monthly income = 3x/(5 * 12) = x/20

Mani's monthly expense on household purpose = 20%

= 20/100 * x/20

= x/100

Remaining = x/20 - x/100 = x/25

Mani's monthly expense on transportation = 25% of remaining

= 25/100 * x/25

= x/100

Remaining = x/25 - x/100 = 3x/100

Mani's monthly expense on food = 30%

= 30/100 * 3x/100

= 9x/1000

Rest money left with him = 3x/100 - 9x/1000

= 21x/1000

A.T.Q.

Rest money left with him = Rs. 8400

so,

21x/1000 = 8400

x = (8400 * 1000)/21

x = 4,00,000

So, Shiva's annual income = Rs. 4,00.000

Hence, option C is the correct answer.

Learn more: Find the annual income

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