Question

A sum of 1550 was lent partly at 5% and partly at 8% simple interest receivedafter
3 years is 300. What is the ratio of the money lent at 5% to that le
danocitoda sum of 6000​

Answer 1

Answer:

t

1

=3,r

1

=5,P

1

=?,SI

1

t

2

=3,r

2

=8,P

2

=?,SI

2

P

1

+P

2

=1,550

SI

1

+SI

2

=300

or

100

P

1

t

1

r

1

+

100

P

2

t

2

r

2

=300

or

100

P

1

×3×5

+

100

P

2

×8×3

=300

or

100

3

(5P

1

+8P

2

)=100

or5P

1

+8P

2

=10,000

or (P

+

P

2

=1,500)×5

or 5P

1

+8P

2

=10,000

or 5P

1

+5P

2

=7,750

or 3P

2

=2,250

∴P

2

=750 and P

1

=800

Hence, P

1

:P

2

=800:750=16:15