(A) 149 m (X)
(B) 156 m (X)
(C) 173 m ()
(D) 200 m (X)

Answers: From a point P on a level ground, the angle of elevation of the top of a tower is 30°. If the tower is 100 m high, the distance of point P from the foot of the tower is 173 m.

(A) 30° ()
(B) 45° (X)
(C) 60° (X)
(D) 90° (X)

Answers: The angle of elevation of the sun, when the length of the shadow of a tree is √3 times the height of the tree, is 30°.

(A) 5 metres (X)
(B) 8 metres (X)
(C) 10 metres ()
(D) 12 metres (X)

Answers: 10 metres

(A) 10% (X)
(B) 10.25% ()
(C) 10.50% (X)
(D) None of these (X)

Answers: An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes 10.25% .

(A) 1 : 3 (X)
(B) 1 : 4 (X)
(C) 2 : 3 ()
(D) Data inadequate (X)

Answers: 2 : 3

(A) 6 years 3 months (X)
(B) 7 years 9 months ()
(C) 8 years 3 months (X)
(D) 9 years 6 months (X)

Answers: A sum of money trebles itself in 15 years, 6 months. In how many years would it double itself 7 years 9 months.