Question

WHOEVER ANSWER THIS QUESTION FIRST WILL BE MARKED AS BRAINLIEST AND RATE ⭐AND ❤THANK.
1.Find the cost price of a watch that is sold for ₹1150 at a profit of 15%.

2.By selling a book for ₹250, Yash
gains 257. What is the c.p of the book?

3.In What time will ₹7,850 amount to ₹8,635 at 4% per annum?

4. Find the simple interest on ₹112.50 for 4 years at 1-2% per annum.​

Answer 1

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1.Let The C.P. of chair = x
Then, (1 +
5
100) = 2142 = 2040 .
For 10% Gain
. . = (1 +
10
100) × 2040 = 2244 Rs.

2.Cost Price of Book = Rs 200 , Amount paid for purchasing the watch = 1600

Step-by-step explanation:

By selling a book for 250, Sonu gains 25%

Cost Price = C

Gain = (25/100)C = 0.25C

Selling Price = C + 0.25C = 1.25C

1.25C = 250

=> C = 200

Cost Price of Book = Rs 200

Rohit sold his wrist-watch for 1280 losing thereby 20%

Let say Rohit Paid = P

Loss 20%  = (20/100)P = 0.2P

Selling Price = P - 0.2P = 0.8P

0.8P = 1280

=> P = 1600

Amount paid for purchasing the watch = 1600



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Answer 2

Step-by-step explanation:

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1.Let The C.P. of chair = x

Then, (1 +

5

100) = 2142 = 2040 .

For 10% Gain

. . = (1 +

10

100) × 2040 = 2244 Rs.

2.Cost Price of Book = Rs 200 , Amount paid for purchasing the watch = 1600

Step-by-step explanation:

By selling a book for 250, Sonu gains 25%

Cost Price = C

Gain = (25/100)C = 0.25C

Selling Price = C + 0.25C = 1.25C

1.25C = 250

=> C = 200

Cost Price of Book = Rs 200

Rohit sold his wrist-watch for 1280 losing thereby 20%

Let say Rohit Paid = P

Loss 20% = (20/100)P = 0.2P

Selling Price = P - 0.2P = 0.8P

0.8P = 1280

=> P = 1600

Amount paid for purchasing the watch = 1600

ITᘔ ruchi