Math, asked by Saketss2131, 3 days ago

If P : Q : R = 6 : 5 : 4 and P2 + Q2 + R2 = 192500, then find ( P + Q − R ) 2 .

Answers

Answered by nanipandubandari

0

Answer:

:Q:R=6:5:4

LetP=6x

Q=5x

R=4x

P

2

+Q

2

+R

2

=192500

(6x)

2

+(5x)

2

+(4x)

2

=192500

77x

2

=192500

x

2

=2500

x=50

2

P+Q−R

=

2

6x+5x−4x

=

2

7x

=

2

7×50

=175

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