Question

) A a 7) A man invests & 12000 at 10% pia and another sum of money p.a. for one year. The total Investment earns at 14 p. a Simple interest the total investment is.​

Answer 1

Step-by-step explanation:

Let the second amount =x

⇒

100

12000×10×1

+

100

x×20×1

=

100

(12000+x)×14×1

⇒

100

120000

+

100

20x

=

100

168000+14x

⇒120000+20x=168000+14x

⇒20x−14x=168000−120000

⇒6x=48000

⇒x=8000

Hence total amount invested=12000+8000=20000Rs.