Question on linear arrangements

Question

Four persons A,B,C,D arrive to attend a meeting.D arrives 10 minutes after B and twenty minutes before A,who arrives 10minutes before C.who is the first person to arrive at the meeting?

Karuna Namdeorao Tawade · Answer

Here C arrived after A who arrived after D.And D arrived after B which implies that B arrived first. Hence the first person to arrive in the meeting is B

Ramanpreet Kaur Saini · Answer

Here C arrived after A who arrived after D.And D arrived after B which implies that B arrived first. Hence the first person to arrive in the meeting is B