91. If cost of 1 kg rice is Rs. 60, calculate the cost of 5 kg 500 g rice.
(a) 500
(b) 450
(c) 330
(d) 640
Answer:
(c) 330
Explanation:
5 kg 500 g is equal to 5.5 kg. To find the total cost, multiply the weight by the price per kg: 5.5 × 60 = 330 Rupees.
92. A bottle has 9 l 900 ml milk in it, which is equivalent to:
(a) 90 ml
(b) 990 ml
(c) 9000 ml
(d) 9900 ml
Answer:
(d) 9900 ml
Explanation:
1 liter (l) is equal to 1000 milliliters (ml). Therefore, 9 liters is 9000 ml. Adding the 900 ml gives a total of 9000 + 900 = 9900 ml.
93. The length of the border of a shape is called:
(a) Surface Area
(b) Circumference
(c) Perimeter
(d) Volume
Answer:
(c) Perimeter
Explanation:
The continuous line forming the boundary or border of a closed two-dimensional figure is called its perimeter.
94. A cube has:
(a) 8 faces and 8 edges
(b) 4 faces and 12 edges
(c) 6 faces and 12 edges
(d) 6 faces and 6 edges
Answer:
(c) 6 faces and 12 edges
Explanation:
In geometry, a regular cube is a three-dimensional solid object bounded by 6 square faces, 12 straight edges, and 8 vertices (corners).
95. The length of carpet is 50 cm and width is 25 cm. Find its area and perimeter.
(a) Area = 1,200 cm², Perimeter = 155 cm
(b) Area = 1,250 cm², Perimeter = 500 cm
(c) Area = 1,250 cm², Perimeter = 150 cm
(d) Area = 1,200 cm², Perimeter = 150 cm
Answer:
(c) Area = 1,250 cm², Perimeter = 150 cm
Explanation:
The area of a rectangle is Length × Width (50 × 25 = 1,250 cm²). The perimeter is 2 × (Length + Width) = 2 × (50 + 25) = 2 × 75 = 150 cm.
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