Since there are 100 centimeters in 1 meter, 5 centimeters is equal to 0.05 meters. Adding this to 1 meter gives 1.05 m.
57. Which of the following is the greatest number:
(A) 4.050
(B) 4.50
(C) [Option missing in source]
(D) 4.051
Answer:
(B) 4.50
Explanation:
When comparing decimals, compare the digits from left to right. All have ‘4’ in the ones place. In the tenths place, 4.50 has a ‘5’, while the others have a ‘0’, making 4.50 the largest number.
58. A thin wire 30 centimetres long is formed into a rectangle. If the width of this rectangle is 5 centimetres what is its length?
(A) 9 cm
(B) 5 cm
(C) 6 cm
(D) 10 cm
Answer:
(D) 10 cm
Explanation:
The total length of the wire represents the perimeter of the rectangle (). The formula for perimeter is 2(l+b) . Therefore, 30. Dividing by 2 gives 15 . Subtracting 5 gives the length as 10cm.
59. A square carrom board has a perimeter of 280 cm. How much is its area?
(A) 70 square cm
(B) 4900 square cm
(C) 490 square cm
(D) 40 square cm
Answer:
(B) 4900 square cm
Explanation:
A square has 4 equal sides. If the perimeter is 280 cm, one side is . The area of a square is , so .
60. The tally marks for 29 cars are:
(A) [Visual tally]
(B) [Visual tally]
(C) [Visual tally]
(D) [Visual tally]
Answer:
(B)
Explanation:
In standard tally mark counting, groups of 5 are represented by four vertical lines crossed by one diagonal line. The number 29 would be represented by exactly five groups of 5, plus four individual vertical lines.
