Question

ATHEMATICS
Ans: 180 children
21.
2073. Set C Q.No. 16 An old man gives of his property to
the first son and 40% of the remainder to the second son,
Then he distributes the remaining property among three
schools in the proportion 2:3:4. The difference of his son's
shares is Rs. 64,000. What is the value of his property and
how much was given to each school?
Ans: Rs. 400,000; Rs. 32000, RS. 48000, Rs. 64000
22
15)​

Answer 1

Answer:ok

Step-by-step explanation:

4x  

2

−(5k+1)x+5x=0 be α and α+1

∴α+α+1=  

4

5k+1

​

⇒α=  

8

5k−3

​

 and α(α+1)=  

4

5k

​

 

⇒  

8×8

(5k−3)(5k−3+8)

​

=  

4

5k

​

 

⇒(5k−3)(5k+5)=80k

⇒(5k−3)(k+1)=16k

⇒5k  

2

−14k−3=0

⇒(k−3)(5k+1)=0

⇒k=3,  

5

−1

​

 

Hence, negative value of k is  

5

−1

​