Watson o bereka diura di le 10 ka letsatsi, malatsi a le matlhano ka beke. O amogela $10 ka ura mme a bone bonase ya $300 beke le beke fa khamphani e dirile bontle. Watson o dirile bokae ka Moranang fa khamphani e dirile bontle kgwedi yotlhe?

Elise has been selling her Dad's collection of 250 books for three years. Each book sells at 20$, and she sold twice as many books in the first year as she has sold in the current year. There are currently 50 unsold books, and her sales number this year is 45. What's the total amount of money she earned in the second year?
Ka letsatsi, Watson o dira 10 * 10 = $<<10*10=100>>100
Fa a bereka malatsi a le matlhano ka beke, palo yotlhe ya malatsi a kgwedi ke 5 * 4= <<5*4=20>>20 malatsi.
E re ka a dira $100 ka letsatsi, palo yotlhe ya kgwedi ke 20 * 100= $<<20*100=2000>>2000.
O bone gape le bonase ya 300 * 4 = $<<300*4=1200>>1200 ka gonne khamphani e dirile bontle mo dibekeng tsotlhe tsa Moranang.
Kwa bofelong jwa Moranang, o amogetse 2000 +1200 = $<<2000+1200=3200>>3200.
#### 3200 

If her sales in the current year are 45, she sold 45*2 = <<45*2=90>>90 books in the first year.
The total number of books sold in the first and current year is 90+45 = <<90+45=135>>135.
The total number of books sold in the second year is 250 of the original number of books - 135 sold books - 50 unsold books = <<250-135-50=65>>65 books.
If each book sells at 20$, then she earned 20*65 = $<<20*65=1300>>1300 in the second year
#### 1300