Solution -
Let,
The sold Banana = x
A person loses Rs. 20 by selling some bananas at the rate of Rs. 3 per banana.
SO,
SP 1 Banana = 3x
CP = SP + loss
CP 3x + 20 ___________ (1)
And,
Gains Rs. 30, if he sells them at Rs. 3.25 per banana.
SP of 1 Banana = 3.25x
CP = SP - Profit
CP = 3.25x - 30 _________ (2)
From eq. (1) and eq. (2)
3x + 20 = 3.25x - 30
3.25x - 3x = 20+30
0.25x = 50
x = 50 / 0.25
x = 200
The number of Bananas sold by him is 200.
Hence,
The correct answer is option (b) 200.
Thank You