Krish can do a piece of work in 4 days, while Rishi can do the same work in 6 days. Both of them work together and get a total of ₹1,600. What is the share of Rishi?

₹640

Krish = 4 days,

Rishi = 6 days,

⇒ Working together they are paid total Rs. 1600, therefore,

⇒ (3 + 2)x = Rs. 1600

⇒ 5x = 1600

⇒ x = Rs.320

Therefore, Rishi's share will be = 2 x 320 = Rs. 640.