QUESTION FROM SANIYAH , OUR OWN ENGLISH HIGH SCHOOL RIDHIMA IS 5 YRS YOUNGER THAN AARAV FOUR YRS LATER - Maths - Simple Equations

Question

QUESTION FROM SANIYAH , OUR OWN ENGLISH HIGH SCHOOL
RIDHIMA IS 5 YRS YOUNGER THAN AARAV FOUR YRS LATER , AARAV WILL BE
TWICE AS OLD AS RIDHIMA FIND THEIR PRESENT AGE
IN THE ABOVE QUESTION , THERE IS A STEP IN WHICH IT IS WRITTEN
x + 5 I DID NOT UNDERSTAND HOW X + 5 IS WRITTEN WHEN IT
WAS WRITTEN IN THE QUESTION 4 YRS LATER

PLEASE CLEAR M DOUBT , MERITNATION EXPERTS

Manbar Singh · Accepted Answer

Let the present age of Aarav = x yrsNow, present age of Ridhima = x-5 yrs4 YEARS LATER :Aarav's age = x + 4 yrsRidhma's age = x-5 + 4 = x-5+4 = x - 1 yrsNow, according to question :   x + 4 = 2x - 1⇒x + 4 = 2x - 2⇒x - 2x = -2 - 4⇒-x = -6⇒x = 6So, present age of Aarav = 6 yrsPresent age of Ridhima = 6 - 5 = 1 yr