There are nine different toppings in Merry Brown Pizza shop. They have to make pizzas with different toppings. In how many ways can the shop keeper make pizzas with 2 different toppings?

a) 36 b) 48 c) 72 d) none of these.

• Total number of toppings :9
  number of ways of making pizzas with 2 toppings: ncr =9c2=(9*8)/2*1=36
• 12 years agoHelpfull: Yes(2) No(0)
• 36.
  9c2=9*8/1*2=36.
• 11 years agoHelpfull: Yes(1) No(0)