Two persons A and B are paid a total of ₹2,040 per week by their employer. If B is paid 140 per cent of the sum paid to A, then how much is A paid per week?

₹850

A + B = Rs. 2040/week.

Given,

                   A    :    B 

Efficiency     140 :  100

                   7    :    5

⇒ (7 + 5)x = 2040

⇒ 12x = 2040

⇒ x = 170

Therefore, A share per week is 5 x 170 = Rs. 850.