Question

Out of 13 cows one worth rs 26000 was removed and a horse was included. if the average price of the animals increased by rs 1500, find the price of the horse

Answer 1

Answer:

hope this will help you ok

Answer 2

Cost of the horse is Rs. 331500.

• Out of 13 cows one worth Rs. 26000 was removed and a horse as included.
• Cost of one cow is Rs. 26000
• Now cost of 13 cows = 13 × 26000 = 338000 Rs.
• Average of 13 cows is Rs. 26000.
• Now one cow was removed and one horse was included and the average price was increased by Rs. 1500.
• 12 cows and one horse is included now.

• Cost of 12 cows = 12 × 26000 = 312000 Rs.

• Let the cost of horse be x.

• Now new mean after including the horse

New mean = $\frac{Cost \ of \ 12 \ cows + cost \ of \ horse}{13}$

• According to the condition,

Old mean + 1500 = $\frac{26000 + x}{13}$

26000 + 1500 = $\frac{26000 + x}{13}$

27500 × 13 = 26000 + x

357500 - 26000 = x

x =331500 Rs.

• Cost of the horse is Rs. 331500