Starting me jo aapnePR+QR=25 esmeQR ko dusri side le gye ho yaniPR=25-

This question was asked in Ex 8.1, 10

Starting me jo aapne
PR+QR=25 esme
QR ko dusri side le gye ho yani
PR=25-QR agar me QR ke jagah PR le jau to answer sahi hoga