Answer:
1710 students.
Step-by-step explanation:
=>900/10=90
=>90x9=810 (girls)
=>810+900=1710 students in total
Hope this helps! ;)
The answer to this is 8
Answer: 25, 31 and 37
(2n-1)= 19, 21, 23, 25, 27, 29, 31, 33, 35, 37
(3n+1)= 19, 22, 25, 28, 31, 34, 37,
30
We can find the lcm of 2 3 and 6, which is 30
30/2=15
30/3=10
30/6=5
so, it works!