Question

33. On selling an article for Rs 75, Alka loses 6 1/4 %, then find the cost price of the article.​

Answer 1

Answer:

good night bro

have a great day

Step-by-step explanation:

Atomic number (Z)=15=P→[Ne]3s

2

3p

3

Phosphorus belongs to 15th group

number of valence electrons 3s

2

3p

3

=5

and valency =3 in ground state

Answer 2

let the cp be 100 rs

sp at 25/4% loss =100-25/4= 375/4

• since, Rs 375/4 sp then Rs 100 cp

• therefore, Rs 75 sp then cp = 100×4×75/375 = Rs 80