percentage Model Questions & Answers, Practice Test for ssc cgl tier 1
ssc cgl tier 1 SYLLABUS WISE SUBJECTS MCQs
Computation of whole numbers, decimals, fractions and relationships between numbers
Percentage
Averages
What is 26% of 55% of $10/13$ th of 6100?
Answer: (e)
Required value = $6100 × 10/13 × 55/100 × 26/100 = 671$
In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is $2/3$ of the number of students of 8 years age which is 48. What is the total number of students in the school ?
Answer: (d)
Let the number of students be x.
Then, Total number of students of 8 years and above 8 years
= (100 – 20)% of x = 80% of x.
∴ 80% of x = 48 + 2/3 of 48
⇒ $80/100 x$ = 80 ⇒ x = 100.
Sonali invests 15% of her monthly salary in insurance policies. She spends 55% of her monthly salary in shopping and on household expenses. She saves the remaining amount of Rs.12,750. What is Sonali's monthly income?
Answer: (b)
Percentage savings of Sonali
= 100 – (15 + 55) = 30%
Let her monthly income be x
$x × 30/100 = 12750$
$x = 12750 × 100/30 = 42, 500$
855 candidates applied for a job, out of which 80% of the candidates were rejected. How many candidates were selected for the job ?
Answer: (e)
No. of candidates selected for job = 20% of 855
= ${20 × 855}/100$ = 171
Water contains 14$2/7$ % of hydrogen and the rest is oxygen. In 350 g of water, oxygen will be
Answer: (b)
Ratio of Hydrogen and oxygen = 1 : 6
Now, oxygen in 350g of water $6/7 × 350$ = 300g
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