Percentage
JKSSB Sub-Inspector (Executive) · Mathematics · 81 practice questions with answers and explanations: 39 Easy, 26 Medium, 16 Hard.
Sample questions
Sample Easy question 1
Find 25% of 25% of 800.
- 40
- 45
- 50
- 55
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Answer: C. 25% of 800 = 200; 25% of 200 = 50.
Sample Medium question 2
A number is increased by 25% and then decreased by 20%. Find the net percentage change.
- +5%
- 0%
- -5%
- -10%
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Answer: B. Net factor = 1.25 × 0.8 = 1.0, i.e. no change.
Sample Hard question 3
A trader increases the marked price of goods by 40% above cost, then offers successive discounts of 20% and 10%. Find his net profit percentage.
- 0.5%
- 0.8%
- 1%
- 1.2%
Show answer
Answer: B. CP=100, MP=140, after 20% discount=112, after 10% discount=100.8, so profit is 0.8%.
More Mathematics topics for JKSSB Sub-Inspector (Executive)
- Algebra
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- Number System
- Profit/Loss & Discount
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