Question

If 45 is added to half a number, the resultant answer is triple the number. Find the number.

Answer 1

Answer:

let the number be x

45+x/2=3x

90+x=6x

90=5x

x=90/5=18

Answer 2

let the no.be x

then, the number added to its half be x/2 + 45

And, resultant be 3x

so, the equation formed is

=> x/2 + 45 = 3x

= >3x - x/2 = 45

=> 5x/2 = 45

=> 5x = 90

=> x = 18.

Checking the solution :

=> 18/2 + 45 = 54

=> 108 = 108

LHS = RHS

verified.