Question

At what time between 5.30 and 6 will the hands of a clock be at right angles?

A) (43 + 5/11) min past 5 B) (43 + 7/11) min pats 5 C) 5 D) 7

Answer 1

at 5o'clock hand are 25 minutes apart, for making right angle they have to at least 40 minutes apart. so between time period of 5:30 and 6 they have minimum distance of 40 minutes (25+15 min)

55min space ae gained in 1 hour (60 min)

then 40 minutes space gained in

60/55*40

so your answer is (B).(43+7/11)min Pat's 5