Mathematics Competition for Elementary School

1. Karl had salary reduced by 10%. He was later promoted and his salary was increased by 10%. If his original salary was $20.0000, what is his present salary ?
A. $ 16.200
B. $ 19.800
C. $ 20.000
D. $ 20.500

2. The prime numbers between 10 and 20 are added together to form the number Q. What is the larges prime divisor of Q ?
A. 2
B. 3
C. 5
D. 7

Answer ?
Read more

mobile spy software buy sildenafil citrate online buy brand viagra
. .