Percentage SSC-Maths (Part-4)

Total Questions: 50

41. The breadth of a rectangular lawn is decreased by 8% and its length is increased by 15%. Find the percentage change in the lawn area. [SSC CPO 29/06/2024 (2nd Shift)]

Correct Answer: (d) 5.8% increase
Solution:

42. The total percentage change in the volume of a cuboid if its length and breadth are decreased by 15% and 25%, respectively, while its height is increased by 60% is: [SSC CPO 29/06/2024 (2nd Shift)]

Correct Answer: (d) 2% increase
Solution:

43. If the radius of a sphere is increased by 20%, then find the percentage increase in its volume. [SSC CPO 29/06/2024 (3rd Shift)]

Correct Answer: (c) 72.8%
Solution:

44. The population of a town is 15000. If the population increases by 15% in the first year, by 25% in the second year and due to pollution it decreases by 6% in the third year, what will be its population after 3 years? (Round off number in answer) [SSC CPO 29/06/2024 (3rd Shift)]

Correct Answer: (a) 20269
Solution:

45. If the length and breadth of a cuboid are increased by 6% and 8%, respectively, then the percentage increase in its volume (correct to two decimal places) is: [SSC CPO 29/06/2024 (3rd Shift)]

Correct Answer: (c) 14.48%
Solution:

46. In a sweet, one-third is sugar. If the price of sugar now is 7/6 of the previous price, what is the effective percentage increase in the cost of the sweet? [SSC CPO 29/06/2024 (3rd Shift)]

Correct Answer: (c) (100/18) %
Solution:

Let the original price of the sweet be x
One-third of the sweet is sugar,

47. Ramesh spent ₹30,000 on Diwali shopping and ₹45,000 on buying a TV set, and the remaining 40% of the total amount he had as cash with him. What was the total amount (in ₹)? [SSC CPO 29/06/2024 (3rd Shift)]

Correct Answer: (b) 1,25,000
Solution:

48. In a college election between two rivals, a candidate got 30% of the total votes polled. He was defeated by his rival by 200 votes. The total number of votes polled was: [Matriculation Level 20/06/2024 (Shift-1)]

Correct Answer: (a) 500
Solution:

49. In a Panchayat election, three contestants - A, B, and C- are contesting. 75% of the total population of 8000 cast their votes. There were no invalid or NOTA votes in the election. A got the least votes, with only 300 votes. B got 66% of the total votes and won the election. How many votes did B get? [Matriculation Level 20/06/2024 (Shift-1)]

Correct Answer: (d) 3960
Solution:

No. of voters who cast their votes
= 8000 × 75% = 6000
No. of votes received by B
= 6000 × 66% = 3960

50. In an election between two candidates, 75% of the voters cast their votes, out of which 4% of the votes were declared invalid. A candidate got 9504 votes, which were 80% of the valid votes. Find the total number of votes enrolled in that election. [Matriculation Level 20/06/2024 (Shift-4)]

Correct Answer: (c) 16,500
Solution: