Question

9. If the interest on 2,400 be more than the
interest on 2,000 by 60 in 3 years at the
same rate per cent; find the rate.
10. Divide 15,600 into two parts such that the
interest on one at 5 percent for 5 years may
be equal to that on the other at 4 per cent
for 6 years.
interest method)
nterest, when at the end of a year (or​

Answer 1

Step-by-step explanation:

9. let Rate is R %

interest on 2400 = 2400* R * 3 / 100

= 72R

and interest on 2000 = 2000* R * 3 / 100

= 60R

given that interest on 24000 is more than interest on 2000 by 60

hence, 72R = 60R + 60

12R = 60

R = 60/12 = 5%