1
There is a mixture of salt and water in a vessel. The weight
of mixture is 72 gm. From this 18 gm mixture is taken out and it is replaced by
18 gm of water. This process is repeated
again, if the mixture contains 5% salt in the end then finds the weight of salt
in initial mixture.
a) 6.1gm, b) 6.2
gm c)6.4 gm
d)
6.5gm
2
Rambabu borrowed 7000
from a bank on simple interest. He returned 3000 to the bank at the end of
three years and 5450 at the end of five years and closed the account. Find the
rate of interest?
a)4% b) 5% c)6% d)8%
3
A sum is invested at a compound interest compounded
annually. The interest in two successive years was 225 and 236.25. Find the
rate of interest.
a)3% b)4% c)5% d)6%
4
A person wants to divide a sum of 3,90,300 between his two
sons who are 13 and 15 years of age in such way that they got equal amount when
they becomes 18 years of age. Find the share of each if rate of interest is 4% and calculated in CI.
a)676:625
b)625:729 c)729:576 d)144:121
ANS
1) C 2) B 3)C 4)A
