If 75 percent of a class answered the first question on a certain test correctly, 55 percent answered the second question on the test correctly, and 20 percent answered neither of the questions correctly, what percent answered both correctly?

A 10%
B 20%
C 30%
D 50%

Correct Answer: 50%

Percentage = (75 + 55 + 20) - 100 = 50
Bissoy MCQ
#গণিত #শতকরা (Percentage) #United Commercial Bank Ltd (UCB) #United Commercial Bank Ltd - Management Trainee Officer - 07.06.2013

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একজন চাকরিজীবীর আয় ও ব্যয়ের অনুপার ২০ঃ ১৫ হলে, তার মাসিক সঞ্চয় আয়ের শতকরা কত অংশ?
A ৩০%
B ১৫%
C ২০%
D ২৫%
একটি ট্রান্সফরমারের প্রাইমারি ও সেকেন্ডারি তারের ঘূর্ণনের অনুপাত 20ঃ 1 এবং সেকেন্ডারিতে 20 omega রোধ লাগানো আছে। যদি প্রাইমারিতে 220 V প্রয়োগ করা হয় তাহলে এর মধ্যে বিদ্যুৎ প্রবাহ হবে-
A 0.55 A
B 27.5 mA
C 27.5 A
D 5.5 mA
Danny attended a test containing 40 questions. If he had corrected 18 questions out of the first 22 and two-third of the remaining questions, what percent of all the questions did he answer correctly?
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A boy got 50% of the questions on a test correct . If he had 10 questions correct out of the first 12 and 25% of the remaining questions correct, how many questions were on the test?
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দুই সংখ্যার বিয়োগফল ৬৬ এবং তাদের অনুপাত ৭ঃ৫ হলে সংখ্যাদ্বয় কত?
A ২৩১,১৬৫
B ২২৩,১১৬
C ২২২,১২০
D ১৯০,১২৪

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