Subject
Quantitative Aptitude
Topic
Fraction
Twenty percent of the computer technicians have passed the certification test conducted by Bangladesh Computer Somity (BCS). Among the technicians who have not passed the test, 21 have taken a preparatory course and 15 have not taken the course. How many computer technicians are there?
Twenty percent of the computer technicians have passed the certification test conducted by Bangladesh Computer Somity (BCS). Among the technicians who have not passed the test, 21 have taken a preparatory course and 15 have not taken the course. How many computer technicians are there?
ক)
9খ)
20গ)
36ঘ)
45Explanation
30% have passed so failed =(100-30 )%=70% total failed= 21+15=36 here, 70% =36 100%=36 x 100/70 =45Related questions
একটি সম্পত্তির ৭/৮ অংশ ২ পুত্র ও ৩ কন্যার মধ্যে এমনভাবে বন্টন করা হলো যার ফলে প্রত্যেক কন্যা প্রত্যেক পুত্রের অর্ধেক পায়। প্রত্যেক পুত্র সম্পত্তির কত অংশ পেল?কোন সম্পত্তির 5/8 অংশের মূল্য 120000 টাকা হলে সমুদয় সম্পত্তির মূল্য কত হবে?X can do a piece of work in 40 days he works at it for 8 days and then why finished it in 16 days. How long will they take together take to complete the work1/4 of Ram's money is equal to 1/6 of Shyam's money. If both together have Tk. 600, the difference between their amount is-A person needs 5 boards, each 3 feet 8 inches long but wood is not sold in fraction of a feet. What is the minimum length of wood, in feet, he must buy?Which of the following fractions is smaller than 8/9 and greater than 2/5?How many digits will be there to the right of the decimal point in the product of 75 and .02554?নিচের ভগ্নাংশগুলোর মধ্যে কোনটি বৃহত্তম?