Kelly o na le dikota tsa 25 tsa sente di le 5 le dikota tsa 10 tsa sente di le 2. Fa a reka kgetsana ya senotsididi ka disente di le 55, o tla sala ka disente di le kae?

If Ann is 9 years old and her brother is twice her age, how old will her brother be in 3 years?
Dikota tsa gagwe tsa 25 tsa sente di lekanya 5 * 25 = <<5*25=125>>125 disente.
Dikota tsa gagwe tsa 10 tsa sente di lekanya 2 * 10 = <<2*10=20>>20 disente.
Kelly o na le palogotlhe ya 125 + 20 = <<125+20=145>>145 disente.
Morago ga go reka kgetsana ya senotsididi, Kelly o tla sala ka 145 - 55 = <<145-55=90>>90 disente. 
#### 90 

Ann's brother is 9 * 2 = <<9*2=18>>18 years old now.
This means, in 3 years, her brother will be 18 + 3 = <<18+3=21>>21 years old.
#### 21