In a test consisting of 80 questions carrying one mark each, sonam answers 65% of the first 40 questions correctly. what per cent of the other number of questions does she need to answer correctly to score 75% on the entire test?
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Heya
Total number of questions= 80
Number of questions to be answered correctly to score 75% are 75/100 ×80
= 60questions.
Sonam has answered 65% of the first 40 questions.
No. Of questions = 65/100 × 40 = 26 questions.
No of questions she.has to answer more to get 75% is 60-26 = 34questions.
Let 34 questions be y% of other number of questions.
34 = y/100 × 40
y= 34×100/40 = 85%
She has to answer 85% of the remaining questions correctly to get 75% of the entire test.
Hope it helps^_^
Total number of questions= 80
Number of questions to be answered correctly to score 75% are 75/100 ×80
= 60questions.
Sonam has answered 65% of the first 40 questions.
No. Of questions = 65/100 × 40 = 26 questions.
No of questions she.has to answer more to get 75% is 60-26 = 34questions.
Let 34 questions be y% of other number of questions.
34 = y/100 × 40
y= 34×100/40 = 85%
She has to answer 85% of the remaining questions correctly to get 75% of the entire test.
Hope it helps^_^
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