Subject
Quantitative Aptitude
Topic
Percentage
On a test consisting of 80 questions, Nasir answered 75% of the first 60 questions correctly. What percent of the other 20 questions does the need to answer correctly for his grade on the entire examination to be 80%?
On a test consisting of 80 questions, Nasir answered 75% of the first 60 questions correctly. What percent of the other 20 questions does the need to answer correctly for his grade on the entire examination to be 80%?
ক)
85%খ)
90%গ)
95%ঘ)
100%Explanation
Here, 80% of 80 question= 80 X 80/100 =64 so ,he needs to answer total 64 question correctly now, as he answered 75% of 60 question correctly=75/100 x 60 =45 so, remaining question=64-45=19 to answer total 64 question and 19 of 20 =19/20 x 100=95%Related questions
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