The circular water pipes shown in the sketch are flowing full. The velocity of flow (in $\mathrm{m} / \mathrm{s}$ ) in the branch pipe " $\mathrm{R}$ " is

(A) 3

(B) 4

(C) 5

(D) 6

The circular water pipes shown in the sketch are flowing full. The velocity of flow (in $\mathrm{m} / \mathrm{s}$ ) in the branch pipe " $\mathrm{R}$ " is

(A) 3

(B) 4

(C) 5

(D) 6

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