Dev thinks of a whole number. He multiplies it by 4. He rounds his answer to the nearest 10. The result is 50.

Write all the possible numbers that Dev could have started with.

Question

Mathematics

Krista Madden

22 May, 16:14

Dev thinks of a whole number. He multiplies it by 4. He rounds his answer to the nearest 10. The result is 50.

Write all the possible numbers that Dev could have started with.

+1

Answers (1)

Know the Answer?

Mercedes · Answer 1

There is only one answer, which is 4*12. Because 4*12=48, then rounded is 50, but 4*11=44 and can't be rounded to 50, and 4*13=52 and can't be rounded to 50.

Dev thinks of a whole number. He multiplies it by 4. He rounds his answer to the nearest 10. The result is 50.Write all the possible numbers that Dev could have started with.

Dev thinks of a whole number. He multiplies it by 4. He rounds his answer to the nearest 10. The result is 50.

Write all the possible numbers that Dev could have started with.