Question

[ATS: ( 3x 9] 19. X started a business with a capital of 10,000. Y joined after sometime by bringing 40,000. If they divide the profit equally, find after how many months Y joined. [Ans: after 9 months) 20 In​

Answer 1

Answer:

1. Subtract :- 3xy²z from -12xy²z.

2. Find the product of 2x, 3x²y and -5xy²z².

3. Add :- 3xy - 4yz + 2zx ; 3yz + 6zx - 5y and 5y - 2yz + 3zx

4. Subtract :- 2pq ( p + q ) from 3pq ( p - q )

5. Multiply :- ( a² + b² ) and ( 5b - 3a )

Answer 2

Step-by-step explanation:

The correct option is C 9 months

Suppose, B joins A after K months

∴

Investments of A and B are in the ratio of

10000

×

12

:

40000

×

(

12

−

K

)

∴

10000

×

12

=

40000

×

(

12

−

K

)

i.e.,

4

(

12

−

K

)

=

12

⇒

K

=

9