It is known that a times b equals 360. If a is expanded three times, the product is 1140. If B is reduced by one fifth, what is the product

It is known that a times b equals 360. If a is expanded three times, the product is 1440
If B is reduced by one fifth, the product is 288

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1. It is known that a times b equals 380. If a is expanded three times, what is the product? If B is reduced five times, what is the product?
2. We know that a times b equals 400. If a times 2, what is the product? If B is divided by 5, what is the product?
3. M and N are reciprocal to each other, then. Nine times M / seven times n is equal to
4. 35m is seven ninths of () M
5. If the product of (x-a) (1 / 5 of x-a) does not contain an X term, then a is equal to?
6. What's the number? 4.9 minus the product of 2.9 and 0.5 is one less than five times X What is the number eight times plus ten equals twelve times minus six? The product of 4.9 minus 2.9 and 0.5 is 1.65 less than five times of X
7. 36 times of X is equal to the product of 7.5 and 12
8. 3 times of what number minus the product of 16 and 0.3 equals 12.6. Do you want to use the equation? Please help me to list the equation
9. The product of a number and one tenth is equal to 45 percent of 7 out of 9
10. What is four and fifteen minus two and fourteen and eleven plus three and fourteen and three?
11. It is known that AXB is equal to 380, if a is multiplied by 3, then the product is (); if B is divided by 5, then the product is ()
12. It is known that a + B = 380, if a expands three times, then the product is (); if B shrinks one-half, then the product is ()
13. The product of a number (except 0) multiplied by a true fraction is greater than the number () A. Big B. equal C. small
14. Multiplication of a natural number by a true fraction () A. The product is greater than the number B. the product is less than the number C. The product is less than or equal to the number
15. The product of two factors is 57. One factor is expanded by 8 times, and the other factor is reduced by 8 times. The product is ()
16. It is known that a and B are equal to 280. If a expands three times and B remains unchanged, then the product is (). If B shrinks five times and a remains unchanged, then the product is (). If a expands five times and B also expands five times, then the product is ()
17. The product of two numbers is 70. One factor is expanded by 100 times, and the other factor is reduced by 10 times______ ．
18. ABC is a non-zero natural number, and a multiplied by 5 / 4 equals B multiplied by 3 / 4 equals C multiplied by 3 / 2, then the three numbers of ABC are arranged as ()
19. A multiplied by 6 / 7 = B multiplied by 6 / 5 = C multiplied by 1, where ABC is a natural number, and none of them is zero. Let's arrange the three numbers ABC from small to large I know the answer is a is less than C is less than B, but I don't know why,
20. ABC is a natural number that is not zero. If 2 / 5 times a equals B and 1 / 7 equals C, then () is the largest