Solving for unknown numbers

1]Three fourth of a number is 60 more than its one third.The number is
a] 84  b]108  c]144  d]none

Solution
Let the number be 'x'
(3/4) x = 60+(1/3) x
(3/4) x - (1/3) x = 60
(9x-4x)/12 = 60
5x = 12*60
x = 144



2]If one seventh of a number exceeds its eleventh part by 100.The number is
a] 770  b]1100 c]1825  d]1925


3]A number exceeds its four seventh by 18. What is the number ?
a]42   b]24  c]144  d]none


4]A number exceeds its one third by 50. What is the number?
a] 70  b]75  c]144  d]none

5]A number exceeds its three fifth by 14. What is the number?
a] 70  b]35c]144  d]45