Best Answer

50

For the spelling reason that (like 20 and 30) its name contains different letters from the numbers that represent its multiple of 10, i.e. fif instead of five.

40 - fo(u)rty

60 - sixty

70 - seventy

80 - eighty

90 - ninety

---

70

It is the only one of the numbers that contains only three different prime factors occurring once (2 x 5 x 7).

Q: What is the odd one out 40 50 60 70 80 90 and why?

Write your answer...

Submit

Still have questions?

Related questions

LCM for 60 40 50 is 600.

60 + 60 + 60 + 50 + 50 + 40 + 30 = 350

one continuation would be:20, 40, 30, 60, 40, 80, 50

50 is exactly halfway between 40 and 60.

50% of 120 id 60 40% of 60 is 24.

50 dollars - 40% = 60% [left] of 50 dollars = 50*60/100 = 30 dollars.

women ages 30-40 have a one-in-252 chance, women ages 40-50 a one-in-68 chance, women ages 50-60 a one-in-35 chance, and women ages 60-70 a one-in-27 chance

No numbers in that range have an odd number of factors.

None of them.

50 + 50 = 100

To create a 50% chlorinated solution from the 60% and 40% solutions, the chemist will need to mix the two in equal amounts. Therefore, 50 L of the 60% solution and 50 L of the 40% solution are needed to make a 100 L solution that is 50% chlorinated.

women ages 30-40 have a one in 252 chance, ages 40-50 a one in 68 chance, ages 50-60 a one in 35 chance, and ages 60-70 a one in 27 chance.