Q: Pervez, Sunny, and Ashu Bhati can complete a piece of work in 30, 50, and 40 days, respectively. Their daily salaries are divided as follows: 4: 3: 2. Parvez's entire income is Rs 144. Determine Sunny's total revenue.  

Total income = total days * per day salary

Let per day salary of Pervez = 4
Pervez can complete a piece of work in 30 days and his per day salary is 4
So, the total income of Pervez = 30* 4 = 120
Let per day salary of Sunny = 3

Similarly, Sunny can complete the same work in 50 days and his per day salary is 3
So, the total income of Sunny = 50 * 3 = 150

Let per day salary of Ashu Bhati = 2
Ashu Bhati can complete the same work in 40 days and his per day salary is 2
So, the total income of Ashu Bhati = 40* 2 = 80

Or, the ratio of total income of Pervez: Sunny: Ashu Bhati = 120: 150: 80 = 12: 15: 8
That means total income of Pervez = 12, but according to the question it is 144.
On multiplying 12 by 12, we get the original value.
So, multiply each by 12.
Hence, the total income of Pervez = 144
Total income of Sunny = 15*12 = 180
Total income of Ashu Bhati = 8*12 = 96