The number of Nokia cellular phones sold by store R is what percent more than that of Samsung cellular phones sold by store P and Q together?

Answer: Option D

Store	Nokia Cellular Phones	Samsung Cellular Phones	Total Number of Cellular Phones
P	896	672	1568
Q	840	280	1120
R	1120	896	2016
S	1568	1344	2912
T	448	1792	2240
U	704	640	1344

Number of Nokia phones sold by store R = 1120
Number of Samsung phones sold by store P and Q together
  = 672 + 280
  = 952
$$\begin{array}{rl}& \therefore \text{Required percentage}\\ & =\frac{1120-952}{952}\times 100\\ & =\frac{16800}{952}\%\\ & =\frac{300}{17}\%\\ & =17\frac{11}{17}\%\text{ more}\end{array}$$