Question

खालील बहुपर्यायी प्रश्नाच्या दिलेल्या उत्तरांपैकी अचूक पर्याय निवडा: जर P-Q-R आणि d(P,Q) = 2, d(P,R) = 10, तर d(Q,R) = किती ?(A) 12
(B) 8
(C) 96
(D) 20

Answer 1

खालील बहुपर्यायी प्रश्नाच्या दिलेल्या उत्तरांपैकी अचूक पर्याय निवडा: जर P-Q-R आणि d(P,Q) = 2, d(P,R) = 10, तर d(Q,R) = किती ?

(A) 12

(B) 8

(C) 96

(D) 20

Answer : B) 8

Refer the given attachment.

Given :

PQ = 2

PR = 10

To find : QR = ?

Let QR be x

As P , Q , R are collinear points,

PQ + QR = PR

2 + x = 10

x = 10 - 2

x = 8

Hence, QR = 8.

Option B) is the answer.

Answer 2

$\underline{\mathfrak{\huge{Your\:Question:}}}$

खालील बहुपर्यायी प्रश्नाच्या दिलेल्या उत्तरांपैकी अचूक पर्याय निवडा: जर P-Q-R आणि d(P,Q) = 2, d(P,R) = 10, तर d(Q,R) = किती ?
(A) 12
(B) 8
(C) 96
(D) 20

$\underline{\mathfrak{\huge{The\:Answer:}}}$

We are given that :-

PQ = 2
PR = 10

And, here, we need to find the value of :-

QR = ?

We know that :-

$\sf{P, Q\:and\:R\:are\:collinear\:points,\:i.e.,\:they\:lie\:in\:a\:straight \:line.}$

So, we can write that :-

PR = PQ + QR

So, to find the measure of QR, we can write that :-

QR = PR - PQ

We are already given with the values of PR and PQ. Replace the variables, and enter their values :-

=》 QR = 10 - 2

Now, solve this formed equation and you will get your answer :-

=》 QR = 8

Thus, we get that :-

$\boxed{\tt{QR = 8}}$

Answer = (B) 8