Question

answer with full steps

Answer 1

Let each article SP = Re 1

for 300 articles, SP = Rs 300

Loss = Rs 25

CP = Rs 325

so, loss% = (25×100)/325 = 7.69 % loss

now, CP = Rs 390 for 300 articles

when CP is Rs 325 then for one article SP = Re 1

when CP is Re 1 then SP for one article = Rs 1/325

when CP is Rs 390 then SP for one article = Rs (1/325)×390 = Rs 1.20  

Answer 2

Answer:

13 m rod wight = 23.4kg

1m rod weight = 23.4/ 13

= 1.8 kg

6 m rod weight = 1.8 × 6

= 10.8 kg