K+19.5≤ 40
You can then proceed to solve the inequality
We should find the mean number of the tests.
This would be done like: (23+24+25)/3 = 24
After that, you should find the percentage or fraction like this 24/50
Then use the fraction as an estimate like this:
(24/50) * 3250 = 1560
The correct answer is 1560.
Here all three are the factor. {a+b} will be the sum and 1/2 is the term
Hopefully i am right
All the best ！！
7 tens=10,10....=70
20 ones=1,1....=20
which sum up to be 90
5 tens=50
13 ones=13
=63
