Question

P + Q + Q = 660. Q + R + S = 600. P + S + R =540. Find the value of p

Answer 1

Answer: 180

Step-by-step explanation:

Answer 2

This really easy...

P+Q+Q=660

2Q=660-P

Q=(660-P)/2 ->equation 1

R+S=540-P ->equation 2

Q+R+S =600

Using equation 1and2

(660-P)/2 +540-P =600

(660-P)/2-P = 600-540

By taking LCM,

(660-P-2P)/2=60

660-3P=60×2

-3P=120-660

-3P=-540

P=-540/-3

P=180

HOPE THIS THE NEEDFUL...