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Percentages 1 - 6

31. A student who secures 20% marks in an examination fails by 30 marks. Another student who secures 32% marks gets 42 marks more than those required to pass. The percentage of marks required to pass is :
a. 20
b. 25
c. 28
d. 30


32. 5% Income of A is equal to 15% Income of B and 10% Income of B is equal to 20% Income of C. If income of C is Rs.2000, then total income of A, B and C is :
a. Rs.6000
b. Rs.18000
c. Rs.20000
d. Rs.14000


33. In mathematics exam a student secured 30% marks in the first paper out of a total of 180. How much should he score in second paper out of a total of 150, If he is to get an over all average of at least 50% ?
a. 74%
b. 76%
c. 70%
d. 80%


34. 75% of a number when added to 75, is equal to a number. The number is :
a. 150
b. 200
c. 225
d. 300


35. After spending 40% in machinery, 25% in building, 15% in raw material and 5% on furniture, Harilal had a balance of Rs.1305. The money with him was :
a. Rs.6500
b. Rs.7225
c. Rs.8700
d. Rs.1390


36. A man donated 5% of his income to a charitable organisation and deposited 20% of the remainder in a bank. If he now has Rs.1919 left, what is his income ?
a. Rs.2558.60
b. Rs.2525
c. Rs.2500
d. Rs.2300


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