Question

After 12 years, Raju will be 3 times as old as 4 years ago. Find his present age

Answer 1

$\Large\underline{\underline{\mathfrak Answer:}}$

Present age of Raju is $\red{\sf 12\:years}$

$\large\underline{\underline{\mathfrak Step-by-step\: Explanation:}}$

Let ,

• Present age of Raju be x

$\large\underline{\underline{\rm After\:12\:Years:}}$

• His age = x + 12

$\large\underline{\underline{\rm Four\:years\:ago:}}$

• His age = x - 4

$\large\underline{\underline{\rm According\:To\: Question:}}$

$\implies{\sf x + 12 = 3(x-4) }$

$\implies{\sf x + 12 = 3x - 12}$

$\implies{\sf -2x = -12 -12}$

$\implies{\sf -2x = -24 }$

$\implies{\sf \red{x = 12 }}$

Hence ,

Present age of Raju is 12 years.

Answer 2

Answer:

12 years

Step-by-step explanation:

let the present age be x

= x+12= because we want age after 12 years

= x+12=3(x-4)

= Open bracket

= x+12=3x-12

= x-3x=-12-12

= -2x=-24

= x= -24/-2

Minus will be removed because both have -ve sign

= x= 12

= So, Raju will be of 12 years

Hope it helped!