Move a decimal point one place to the right, then reduce it to one percent and then to one tenth. The final result is 0.015, which was ()

Move a decimal point one place to the right, then reduce it to one percent and then to one tenth. The final result is 0.015, which was ()

First move a decimal point to the right by one place, then reduce it to one percent and then to one tenth. The final result is 0.015, which is (1.5)
0.015×10×100÷10=1.5

The product of two factors is 4.86. If one factor is reduced to one percent of it and the other factor is expanded to 10 times of it, what is the product?
A three place decimal is rounded to the nearest 1.87. What is the maximum and minimum of the three place decimal?

1、0.486
2. Maximum: 1.874 minimum: 1.865

1. The product of two factors is 42. If one factor is expanded by 10 times and the other factor is reduced by one hundredth of the original, the product becomes 42
2. There is a measuring cup with 300 ml of water in it. Now immerse three cone iron blocks in it. The bottom area of each cone is 10 square centimeters and the height is 5 centimeters. Now the scale of water surface is () ml

The product of the two factors is 42. If one factor is increased by 10 times and the other factor is reduced by one hundredth of the original, the product becomes 4.22. There is a measuring cup with 300 ml water in it. Now three cone iron blocks are immersed in it. The bottom area of each cone is 10 square centimeters and the height is 5 centimeters. Now the scale of the water surface is (35