### Five years ago, the average age of P and Q was 25. The average age of P, Q and R today is 25. Age of R after 5 years will be :

**A.** 15 years

**B.** 20 years

**C.** 40 years

**D.** 35 years

## Show Answer

###
Answer-B

Solution-

Solution(By Apex Team)

$\begin{array}{l}\text{According to the question,}\\
\frac{P+Q}{2}=25\\
P+Q=50\ldots..(\text{ i) }(5\text{ years ago })\\
\frac{P+Q+R}{3}=25\\
P+Q+R=75\ldots..\text{ (ii) (present age) }\end{array}$
∴ Present age of P + Q = 50 + 10 = 60 years
Present age of R = 75 – 60 = 15 years
$\begin{array}{l}\text{∴ Age of R after 5 years}\\
\text{= 15 + 5 = 20 years}\end{array}$