The table given shows the number of Realme phones sold by five different shopkeepers and the difference between the number of Realme phones sold and the numberof Samsung phones sold by five different shopkeepers.
Number of Realme phones sold is more than the number of Samsung phones sold by reach shopkeeper.
Find the number of Samsung phones sold by shopkeepers A and C.

Shopkeepers	Number of Realme phone sold	Difference between Realme phone sold and Samsung phone sold
A	500	300
B	200	120
C	250	50
D	450	200
E	350	150

Correct option is B

​$$\text{Given:} \\\text{Number of Realme phones sold by A = 500, and the difference between Realme and Samsung phones sold by A = 300.} \\[6pt]\text{Therefore, Samsung phones sold by A = 500 - 300 = 200.} \\[6pt]\text{Similarly, Number of Realme phones sold by C = 250, and the difference between Realme and Samsung phones sold by C = 50.} \\[6pt]\text{Therefore, Samsung phones sold by C = 250 - 50 = 200.} \\[6pt]\text{So, the number of Samsung phones sold by shopkeepers A and C are both } \boxed{400}.$$​​