Percentage SSC-Maths

Total Questions: 50

31. The price of petrol shot up by 5%. Before the hike, the price was Rs. 82 per litre. A man travels 3045 km every month and his car gives a mileage of 15 km per litre. What is the increase in the monthly expenditure (to the nearest Rs.) on the man's travel due to the hike in the petrol prices? [SSC CGL 12/04/2022 (Morning)]

Correct Answer: (a) 832
Solution:

32. In a manufacturing unit, it was noted that the price of raw material has increased by 25% and the labor cost has gone up from 30% of the cost of raw material to 38% of the cost of raw material. What percentage of the consumption of raw material be reduced to keep the cost the same as that before the increase? [SSC CGL 11/04/2022 (Evening)]

Correct Answer: (c) 24.6%
Solution:

33. Due to some crisis, some people from State A migrated to State B, and thereby the population of the second State increased by 19.96%. However, at a later stage, all of them returned to State A. Then by what percentage (correct up to two decimal places) did the population of State B decrease? [SSC MTS 05/10/2021 (Morning)]

Correct Answer: (b) 16.64
Solution:

34. By mistake, the reciprocal of a positive fraction got typed in place of itself, and thereby its value got reduced by (175/4)%. What was the value of the fraction? [SSC CGL 24/08/2021 (Evening)]

Correct Answer: (b) 4/3
Solution:Short-trick-: As the number is reducing when it is reversed which means that its numerator must be greater than its denominator, which is only in option B

35. The income of A is 20% less than the income of B and the income of C is 70% of the sum of incomes of A and B. The income of D is 25% more than the income of C. If the difference between the incomes of B and D is Rs 23000, then what is the income (in Rs) of A? [SSC CGL 18/08/2021 (Afternoon)]

Correct Answer: (a) 32000
Solution:

36. A certain number of students from school X appeared in an examination and 20% students failed. From school Y, 130% more students than that from school X, appeared in the same examination. If 90% of the total number of students appeared from both the schools passed, then what is the percentage of students from school Y who failed (correct to one decimal place)? [SSC CGL 17/08/2021 (Morning)]

Correct Answer: (d) 5.7%
Solution:

37. In a workshop with 80 students and 10 resource persons, sweets were distributed at the end of the workshop. The amount spent for distributing sweets to each student was 30% of the total number of students and the amount spent towards each resource person was 40% of the total number of students. The total amount spent for sweets distribution in the workshop was: [SSC CHSL 10/08/2021 (Afternoon)]

Correct Answer: (d) Rs. 2240
Solution:Amount spent on each student →30% of 80 = 24
Amount spent on each resource person →40% of 80 = 32
Total amount spent for sweets distribution → (80 × 24) + (10 × 32) = 2240 Rs.

38. In a constituency, 55% of the total number of voters are males and the rest are females. If 40% of the males are illiterate and 40% of the females are literate, then by what percentage is the number of illiterate females more than that of the illiterate males (correct to the one decimal place) [SSC CHSL 04/08/2021 (Evening)]

Correct Answer: (a) 22.7%
Solution:

39. A reduction of 20% in the price of sugar enables a purchaser to obtain 4 kg more for Rs.160. The original price of sugar per kg is: [SSC CHSL 20/10/2020 (Morning)]

Correct Answer: (b) 10
Solution:

40. A student multiplied a number with 3/4 instead of 4/3 What is the error percentage? [SSC CHSL 15/10/2020 (Afternoon)]

Correct Answer: (b) 43.75%
Solution: