% question

[know]

Worker BB received a salary in the amount of € 1100 in the previous month, which is 20% less than the salary in the current month. What is the salary in the current month? a) 1400 b) 1356 c) 1320 d) 1375



If we subtract 20% from 1320, we get 1056.
The salary in the previous month was 1100? Can you explain to me ??????

 

[Deleted member 4993]

Worker BB received a salary in the amount of € 1,100 in the previous month, which is 20% less than the salary in the current month. What is the salary in the current month? a) 1400 b) 1356 c) 1320 d) 1375

If we subtract 20% from 1320, we get 1056. ............................Why are you choosing 1320?
The salary in the previous month was 1100? Can you explain to me ??????

I'll do a similar but different problem for you.

Worker BB received a salary in the amount of € 900 in the previous month, which is 10% less than the salary in the current month. What is the salary in the current month?

We need to calculate the salary of current month. Let

salary of current month = C

salary of previous month = P = 900

We are given:

the amount of € 900 in the previous month, which is 10% less than the salary in the current month

P = C - 0.1 * C = 0.9 * C

So we have (knowing P = 900)

900 = 0.9 * C

C = 900/0.9 = 1000

Follow the exact same procedure.

 

[Deleted member 4993]

Worker BB received a salary in the amount of € 1100 in the previous month, which is 20% less than the salary in the current month. What is the salary in the current month? a) 1400 b) 1356 c) 1320 d) 1375
If we subtract 20% from 1320, we get 1056.
The salary in the previous month was 1100? Can you explain to me ??????

Why did you choose 1320? Instead, if you had chosen 1375, you would get:

1375 - 0.2* 1375 = 1100

 

[know]

Thank you! I asked my friends and they told me that the 1320 is correct, but I saw that can't be correct. Thanks again for your help!

 

[Deleted member 4993]

Thank you! I asked my friends and they told me that the 1320 is correct, but I saw that can't be correct. Thanks again for your help!

That is why we learn mathematics - love your friends but verify their "advise"!