If 6 $ 2 = 20 and 4 $ 3 = 19, then 5 $ 2 = ?
A18
B17
C16
D15
Answer:
B. 17
Read Explanation:
Observe the pattern:
6 2=6x2+(6+2)=12+8=20<br><br>4 3 = 4 x 3 + (4+3) = 12 + 7 = 19
So,
a b=ab+(a+b)<br></p><pdata−pxy="true"style="color:rgb(0,0,0);margin−top:2px;margin−bottom:2px;">Nowcalculate:</p><pdata−pxy="true"style="color:rgb(0,0,0);margin−top:2px;margin−bottom:2px;"><br>5 2 = 5 x 2 + (5+2)
= 10 + 7
= 17
Therefore,
17