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Xiao Hua divided a number by 67 and calculated it by 67. The result is 15. What's the correct answer?
The correct answer is 20512
In the math exam, Xiao Li calculated "a number divided by 47.5" as "multiplied by 4.75". The result is 406.125. What's the correct answer?
The number should have been divided by 47.5, the result multiplied by 4.75, amplified by 47.5 * 4.75 = 225.625 times
Just divide by 225.625 to get the correct answer
406.125 / 225.625 = 1.8 the correct answer should be 1.8
Divide a number by 4.75 and multiply it by 4.75. The result is 406.125
Original 406.125 △ 4.75 = 85.5
The correct result is 85.5 △ 4.75 = 18
When you divide a number by 3.75, you take the division sign as a multiplication sign, and the result is 225______ ．
A: the correct answer to this question is 16
Careless Liang Liang mistakenly regards division by 3 as multiplication by 3 when doing a calculation problem, making the calculation result 168 more than the correct answer?
The title of the book has baffled me several times!
Because Liang Liang mistakenly regards division by 3 as multiplication by 3 when he is doing a calculation problem, so the answer is nine times the original one. Let the original answer be X
9x-x=168
8x=168
x=21
The original answer was 21
Xiao Ming in the math exam, not careful to divide a number by 4.75, calculated by 4.75, the result is 406.125, the correct answer to this question should be?
A: the correct answer to this question should be 18
When Xiao Ming calculated a number divided by two fifths, he miscalculated the number and multiplied it by two fifths. What is the correct answer
Let the original number be x, then [x * (2 / 5)] / [x / (2 / 5)] = (2 / 5) x / (5x / 2) = (2 / 5) * (2 / 5) = 4 / 25
Xiao Ming is calculating a number that is not equal to 0 divided by 2 / 5. He miscalculated this number and multiplied it by 2 / 5. What is the correct answer
25/1
Xiao Ming divided a number (not 0) by 3 / 4 and calculated it by 3 / 4. What is the correct answer?
Let this number be x (x ≠ 0)
（x×3/4）÷（x÷3/4）
=(3x/4)÷(4x/3)
=9/16
When Xiao Hu calculated a number multiplied by 1.5, he wrongly wrote that he divided it by 1.5, and the result became 2.4. The correct result of this problem should be []
2.4X1.5X1.5=5.4
RELATED INFORMATIONS
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- 2. To express the diameter range of colloidal particles in cm is to convert 1nm ~ 100nm into cm. What is the result?
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- 14. The father is 47 years old and the son is 21 years old. A few years ago, the father was three times as old as the son?
- 15. When inequality 2 ≤ x2 + PX + 10 ≤ 6 has exactly one solution, the value of real number P is______ ．
- 16. Master Li bought back a rectangular sheet of iron from the market. After cutting off a square with a side length of 1 meter from each corner of the rectangular sheet, the rest of the box was just enclosed into a 6 cubic meter uncovered rectangular transport box. The bottom of the box was 1 meter longer than the width. It is known that it costs 20 yuan per cubic meter to buy this sheet of iron. How much did Master Li spend on buying this rectangular sheet of iron?
- 17. How about 53 × 57
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