A pillar 16 feet tall casts a shadow 4 feet long on the ground. If the pillar was 24 feet tall, how many feet in length would the shadow be at same time of the day ?

6 feet. . Shadow is 24 * (4/16) = 6 feet

What is the length and direction of your shadow in the morning afternoon and evening?

There are 13 members in a committee having 7 men and 6 women . In how many ways a team of 4 persons can be selected in such a way that at least 1 man would be there in the team ?