Question

if manvitas father's age is half year less than the 13 time of her age. find her age if father's age is 32​

Answer 1

Answer:

let Manvita's age be 13x-1

let her father's age be x

(x)(13x-1)=32

13x^2-x-32=0

a=13 , b=-1 , c=-32

x=-b+-√b^2-4ab/2a

x=13+-√1-4(13)(-32)/2(13)

x=13+-√1+1664/26

x=13+-√1665/26

x=13+-40.804/26

x=13+41(approx)/26

x=14(approx)

OR

x=13-41/26

x=-1.07 ( x cannot be negative)

SO, Manvita's age is 14 yrs

Answer 2

Answer:

2.5 years

Explanation:

let manvita's age = x years

13x - 1/2=32

13x=32 + 1/2

13x=64 - 1/2

13x=65/2

x = 65/2 * 1/13

x= 5 /2

x = 2.5 years