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An engineering college claims an average test pass rate of 76.8%.What is the least number of students required to achieve this result?
- A248
- B117
- C62
- D125
Answer not set
Discussion 1
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0
CCommunity
These types of questions are to be solved by using the given options
Let’s start by the smallest available number in the option that is 62
For 62 total students, number of students passed = 76.8/100 × 62 = 47.6
For 117 total students, number of students passed = 76.8/100 × 117 = 89.85
For 248 total students, number of students passed = 76.8/100 × 248 = 190.46
For 125 total students, number of students passed = 76.8/100 × 125 = 96
Since, number of students passed can’t be in decimals
∴ 125 is our required answer.
Let’s start by the smallest available number in the option that is 62
For 62 total students, number of students passed = 76.8/100 × 62 = 47.6
For 117 total students, number of students passed = 76.8/100 × 117 = 89.85
For 248 total students, number of students passed = 76.8/100 × 248 = 190.46
For 125 total students, number of students passed = 76.8/100 × 125 = 96
Since, number of students passed can’t be in decimals
∴ 125 is our required answer.