Question

after providing discount of 20% on a article having mp ₹1000 a shop keeper profit of 25%. Find the cp of the article​

Answer 1

Answer:

Solution :

Let the weight of new boy is 'x' kg.

According to question,

The average weight of 6 Boys Get increased by 5 kg if a boy with weight 20 kg replaced by a new boy.

i.e. \frac{x-20}{6}=5

6

x−20

=5

x-20=5\times 6x−20=5×6

x-20=30x−20=30

x=30+20x=30+20

x=50x=50

Therefore, The weight of new boy is 50 kg.

Answer 2

Answer:

20% on Mp 1000=200

selling price is 1000-200=800

shopkeeper makes profit of 25% on Selling price

So,

25÷100×800=200

shopkeeper makes profit of 200

So CP of the article is 800-200=600