Solution :
Red is dominant over the white leaves and pointed is dominant over smooth. 
Red = R ,    white = r
Pointed = P ,   smooth = p
Red, pointed x white,smooth ------ Parents
RRPP                 rrpp
 RP                      rp  ----------------- Gametes
          RrPp    -------- 
   (red, pointed)
When this  is test crossed,
 is test crossed,
RrPp  x  rrpp     ----   test cross
 test cross
Gametes   → rp
RP ---------- RrPp - red, pointed - 36 parental type
Rp ---------- Rprp - red, smooth - 14 re- combination
rP ----------- rrPp - white pointed - 10 re- combination
rp ----------- rrpp - white, smooth - 40 - parental type
                                     Total =   100
As this ratio is deviating from 1:1:1:1, it indicated the two genes are linked.
Linkage strength = percentage of crossing over = map distance between the genes.
Percentage crossing = recombination frequency = percentage of recombination.
Recombination frequency 
                                          
                                          = 24 %
                                         = 24 map units