Math, asked by Anonymous, 6 months ago

The ratio of Income in 2018 of X and Y was 3:4. The ratio of individual incomes in 2018 2019 were 4:5 and 5:8 respectively. if their toal income in 2019 was INR 657720 then X?

Answers

Answered by RvChaudharY50
2

Given :- The ratio of Income in 2018 of X and Y was 3:4. The ratio of individual incomes in 2018 2019 were 4:5 and 5:8 respectively. if their toal income in 2019 was INR 657720, then salary of X in 2019 was ?

Solution :-

Let us assume that, the salaries of X and Y last year be Rs. 3x and Rs. 4x respectively.

Then,

→ X Present salary = (5/4) * 3x = Rs. (15x/4) .

and,

→ Y Present salary = (8/5) * 4x = Rs. (32x/5) .

given that, their toal income in 2019 was Rs. 657720 .

So,

(15x/4) + (32x/5) = 657720

→ (15x * 5 + 32x * 4) /20 = 657720

→ 75x + 128x = 657720 * 20

→ 203x = 657720 * 20

→ x = (657720 * 20) / 203

→ x = Rs.64, 800 .

Therefore,

salary of X in 2019 = (15x/4) = (15 * 64800) / 4 = Rs.243,000 (Ans.)

Hence, salary of X in 2019 was Rs. 243,000 .

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