35 × 4/5

26、

(1) When the class time of grade five students is (24 ×25%=6 hours) every day,

The time of extracurricular activities is (24 × 16.7%=4.008 hours). ② Grade five students sleep the longest, which is (

24 × 4 1.5%=9.96 hours).

③ What other math questions can you ask?

Self-study time: 24 ×8.5%=2.04 (hours).

Three meals and washing time: 24 ×8.3%= 1.992 (hours)