Percentage SSC-Maths (Part-4)

Total Questions: 50

31. A number is first decreased by 10%, then increased by 30% and then further it is decreased by 20%. What is the net decrease percentage in the number? [SSC CPO 28/06/2024 (1st Shift)]

Correct Answer: (b) 6⅖ %
Solution:

32. Ramnarayan's salary was reduced by 3⅛ % and then, the reduced salary was increased by 7⅖ %. By what percentage (rounded off to two decimal places) is his new salary more/less as compared to his original salary? [SSC CPO 28/06/2024 (2nd Shift)]

Correct Answer: (b) 4.04% more
Solution:

33. Shiya invests ₹1,53,000, which is 30% of her annual income, in mutual funds. What is her monthly income (in ₹)? [SSC CPO 28/06/2024 (2nd Shift)]

Correct Answer: (c) 42,500
Solution:

34. If the radius of a sphere is increased by 125%, then by what percentage will its surface area increase (correct to two decimal places)? [SSC CPO 28/06/2024 (2nd Shift)]

Correct Answer: (d) 406.25%
Solution:

35. The population of a city increases every year at the rate of 5%. If the population of the city is 16000, what will be the population after 2 years? [SSC CPO 28/06/2024 (2nd Shift)]

Correct Answer: (a) 17640
Solution:

36. If the number of school going children in a town is 64000 and it is increasing annually by 10%, then what will be the number of school going children in the town at the end of 3 years? [SSC CPO 28/06/2024 (3rd Shift)]

Correct Answer: (b) 85184
Solution:

37. The cost of Compressed Natural Gas (CNG) per litre is increased by 65%. By what percentage must Manish reduce his consumption of CNG so as not to increase his expenditure? (correct up to two decimal places) [SSC CPO 28/06/2024 (3rd Shift)]

Correct Answer: (a) 39.39%
Solution:

38. Two successive price increases of 25% and 25% of an article are equivalent to a single price increase of: [SSC CPO 29/06/2024 (1st Shift)]

Correct Answer: (c) 56.25%
Solution:

39. A is 25% more than B and B is 30% less than C. If C is 20% more than D, then by what percentage is A more than D? [SSC CPO 29/06/2024 (1st Shift)]

Correct Answer: (c) 5%
Solution:

40. The population of a town increases annually by 20%. If the present population is 80lakh, then what is the difference between the population three years ago and 2 years ago? [SSC CPO 29/06/2024 (2nd Shift)]

Correct Answer: (d) 925925.93
Solution: