To find one-third of a number 18, divide it by 3. .
48. Rehman has to travel km to reach school. What distance does he travel to go to school and come back home?
(A) km
(B) km
(C) km
(D) km
Answer:
(A) km
Explanation:
If the one-way distance is km (which is km), the round trip is double that distance: , which converts back to the mixed fraction km.).
49. Which of the following shapes would NOT look the same after half a turn?
(A) Square
(B) Rectangle
(C) Triangle
(D) Circle
Answer:
(C) Triangle
Explanation:
A half-turn is a rotation. Squares, rectangles, and circles have rotational symmetry at and look identical upside down. A standard triangle (pointing up) will point down after a half-turn and look different.
50. The smallest common multiple of 4, 5 and 6 is:
(A) 20
(B) 30
(C) 60
(D) 120
Answer:
(C) 60
Explanation:
The official answer key marks (C) as the correct option.