When will the hands of a clock be at right angles between 5.30 and 6 p.m.?
A. 43 5/11 min. past 5
B. 43 7/11 min. past 5
C. 40 min. past 5
D. 45 min. past 5
Answer:B
When will the hands of a clock be at right angles between 5.30 and 6 p.m.?
A. 43 5/11 min. past 5 B. 43 7/11 min. past 5 C. 40 min. past 5 D. 45 min. past 5
Explanation: The hands are 25 minutes apart at 5 o'clock. Explanation:The minute hand must acquire (25 + 15) = 40 minutes spaces to be at right angles, and that between 5.30 and 6.Spaces for 55 minutes are earned in 60 minutes; 40 minutes are gained in (60/55 x 40 minutes)=43 7/11 minutes.