Question

Some questions are solved on the basis of a certain system. Identify that operation and find out the correct answer from the four responses given.
$a=14\left(290\right)15,b=16\left(330\right)17,c18(?)19$.

• A. 300
• B. 270
• C. 170
• D. 370

Answer 1

The correct option is D 370

a=14(290)15=(14+15)×10=290a=14(290)15=(14+15)×10=290
b=16(330)17=(16+17)×10=330b=16(330)17=(16+17)×10=330
c=18(?)19=(18+19)×10=370