1. The four angles of a quadrilateral are A1, A2, A3 and A4. The sum of A1 and A2 is greater than A3 by 20° and A4 is greater than A3 by 70°. What is the sum of A1 and A2? (C)
(A) 100°
(B) 90°
(C) 110°
(D) 120°
(E) 40°
2. Out of a total sum of T 22,400, Ram invested a certain amount in scheme A and the remaining amount in scheme B. Scheme A offers interest at 8 p. c. p. a. and scheme B offers simple interest at 6 p. c. p. a. Ram invested in both the schemes for 2 years. If the total interest earned by him from both the schemes after two years is T 3,280. What is the respective ratio between amount invested by him in scheme A to that in scheme B? (A)
(A) 37 : 19
(B) 37 : 21
(C) 39 : 17
(D) 39 : 19
(E) 39 : 23
3. A boat can travel 3.9 km downstream in 13 minutes. If the speed of the current is 3 kmph, what distance (in km) the boat can travel upstream in 28 minutes? (E)
(A) 5.8
(B) 4.8
(C) 5.2
(D) 6.2
(E) 5.6
4. The respective ratio between the diagonal of a square and breadth of a rectangle is 7: 5. The area of the square is 49 m2 and the length of the rectangle twice its breadth, what is the perimeter of the rectangle (in m)? (B)
(A)40
(B) 20
(C) 60
(D) 70
(E) 30
5. A, B and C started a business by investing T 16,000, T 26,000 and T 36,000 respectively. After 4 months from start of the business, B withdrew T 6,000 and C withdrew T 12,000. If at the end of a year, the total profit was T 21,450 is earned, what is the share of A? (E)
(A) T 5,600
(B) T 5,800
(C) T 4,800
(D) T 6,000
(E) T 5,200
