41 .

An observer 1.6 m tall is 20sq.root(3) away from a tower. The angle of elevation from his eye to the top of the tower is 30º. The heights of the tower is:

An observer 1.6 m tall is 20sq.root(3) away from a tower. The angle of elevation from his eye to the top of the tower is 30º. The heights of the tower is:

A.21.6 m

B. 23.2 m

C. 24.72 m

D.None of these

View AnswerAns: 21.6 m
42 .

Find the odd man out.

1, 4, 9, 16, 23, 25, 36

Find the odd man out.

1, 4, 9, 16, 23, 25, 36

A.9

B. 23

C. 25

D.36

View AnswerAns: 23
43 .

If x + y =8 and y- x = -2, then y=

If x + y =8 and y- x = -2, then y=

A.-2

B. 3

C. 5

D.8

View AnswerAns: 3
44 .

If r ? s= r(r-s) for all integers r and s, then 4?(3?5) equals

If r ? s= r(r-s) for all integers r and s, then 4?(3?5) equals

A.-8

B. -2

C. 2

D.40

View AnswerAns: 40
45 .

Each question has an underlined word followed by four answer choices. You will choose the word that is a necessary part of the underlined word.

diploma

Each question has an underlined word followed by four answer choices. You will choose the word that is a necessary part of the underlined word.

diploma

A.principal

B. curriculum

C. employment

D.graduation

View AnswerAns: graduation