Question

the average marks of ram shyam hari and gopal in math is 65 if ram hari and shyam obtained 60 70 and 80 respectively how many marks did gopal obtain

Answer 1

This is your answer. Gopal obtained 70 marks.

Answer 2

Step-by-step explanation:

let marks of Ram,Shyam,Hari and Gopal be x1,x2,x3,x4 respectively.

Given- (1.) Average marks of Ram,Shyan,Hari and Gopal in Math is 65

=> (x1 +x2+ x3+ x4) /4 = 65 ------(1)

(2.) marks of ram shyam and hari is 60, 80 and 70 respectively so we need to find marks obtained by Gopal means x1= 60, x2= 80 and x3= 70

and x4=?

(60+80+70+x4) /4 = 65

=> (210+ x4)/4 = 65

=> x4 = 65×4 - 210= 260-210= 50

therefore marks obtained by Gopal in Maths = 50

u can verify the answer by putting all the values in eqn (1)

(60+80+70+50)/4 = 65