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GREYUIT [131]
3 years ago
12

Alima is solving a question, where a given number has to be multiplied by 15. Alima did not read the question carefully, and mul

tiplied the number by 5 (instead of 15). If her answer is 150 less than the correct answer, find the given number.
Mathematics
1 answer:
loris [4]3 years ago
3 0

x    -  Alma's given number

15•x  -  the number multiplied by 15 (the correct answer)

5•x   - the number multiplied by Alma (Alma's answer)

her answer is 150 less than the correct answer:

5•x = 15•x - 150

15x - 150 = 5x

15x - 5x = 150

 10x = 150

   <u>x = 15</u>

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