 
 <translate> On Tuesday, Billy ate 2 * 2 = 4 apples. On Friday, he ate 2 * 0.5 = 1 apple. On Thursday, he ate 4 * 1 = 4 apples. So for Monday, Tuesday, Thursday, and Friday, Billy ate a total of 2 + 4 + 4 + 1 = 11 apples. This means that on Wednesday, he must have eaten 20 – 11 = 9 apples. So, the answer is 9. <hau> A ranar Talata, Billy ya ci 2 * 2 = 4 apples. A ranar Juma'a, ya ci 2 * 0.5 = 1 apple. A ranar Alhamis, ya ci 4 * 1 = apples 4. Saboda haka a ranar Litinin, Talata, Alhamis, da Jumma'a, Billy ya ci duka 2 + 4 + 4 + 1 = 11 apples. Wannan yana nufin cewa a ranar Laraba, dole ne ya ci 20 <unk> 11 = 9 apples. Amsar ita ce 9. 