(2) The sum of three consecutive natural numbers is 72, and the smallest of these three natural numbers is (13).
(4) The sum of the sides of a cube is 48 cm, its surface area is (96) and its volume is (64).
(5) The rectangle is 8 cm long, 6 cm wide and 0.5 decimeter high. Its surface area is (1 10) square centimeter and its volume is (24) cubic centimeter.
(6) A cuboid container with a bottom area of 16 square decimeter and a water height of 6 decimeters is now placed in an iron block with a volume of 24 cubic decimeter. At this time, the water level is (7.5) decimeter high.
(7) The areas of two adjacent faces of a cuboid are 10 cm2 and 35 cm2 respectively, the length of two rectangular sides is 5 cm, and the volume of the cuboid is (70) cm3.
(8) A cuboid has a surface area of 280cm2, a bottom area of 60cm2 and a bottom circumference of 32cm. The volume of this cuboid is (300cm? )。
(9) Cubic water tank with internal length of 30 cm and depth of 20 cm. How many liters of water do you want?
Is requirement (d). A, water tank volume b, water tank volume c, water volume d, water volume.
(10) The truck and the bus run in opposite directions from A and B at the same time. Trucks travel 60 kilometers per hour and buses travel 80 kilometers per hour. A few hours later, the two cars met 40 kilometers from the midpoint. Suppose x hours later, two cars meet at a distance of 40 kilometers from the midpoint. According to the meaning of the question, the listed equation or formula is wrong (C).
a、60x+40 = 80x-40 B、80x-60x = 40×2
c、80x-60x = 40 D、40×2(80-60)