Question

1m cotton ka price 105₹ hai. 1m cotton ka price, 1m silk se 3 times (yaani 3 guna) hai. Aur aapke paas jitni cotton hai, usse 7 times lambi silk hai. Aapke paas 7000₹ ke kapde hai. Batayie aapke paas kitni length ki cotton hai?

Answer 1

Length of cotton you have = 20 meter.

Given:

• 1 m cotton price = 105₹.
• 1 m cotton price = 3× 1 m silk price .
• You have total 7000₹.
• You have 7 times more silk than cotton.

To find:

       Length of cotton.

Explanation:

• Consider you have x meter cotton.
• From given data you have 7x meter silk.
• 1 m cotton price = 105₹.
• 1 m cotton price = 3× 1 m silk price

                           105 = 3× 1 m silk price

• 1 m silk price = 35 ₹
• From given condition.
• x meter cotton price = 105 × x
• 7x meter silk price = 7 × 35 × x = 245 × x
• From given data,

         105 x + 245 × x =7000

                     350 × x =7000

                              x = 20

Length of cotton you have = 20 meter.

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Answer 2

price of 1m cotton=₹105
price of 1m silk=₹105/3=₹35
Ratio between length of cotton and silk owned=1 :7
let the ratio be x.
so,
price of 7m silk=7*35=₹245
Total price=₹105+₹245=₹350
Total price of clothe owned=₹7000
ATQ,
7000=1/7x*350
7000/350=1/7x
20=1/7x
x=20*7
x=140
length of cotton i own=140m