A44B24C22D20 Step-by-Step Solution28 = 25 + 2f1−10−14f1−10∗5⇒3=2f1−245(f1−10)⇒3(2f1−24)=5(f1−10)⇒6f1−72=5f1−50⇒f1=22. Check: Mode =25+44−2422−10∗5=25+2012∗5=25+3=28. So f1=22.Answer: C) 22