an increase of 1%
an increase of 99%
a decrease of 11%
প্রশ্নঃ If the price of an item is increased by 10% and then decreased by 10%, the net effect on the price of the item is --
Let, price of the item = Tk.100
After 10% increase the price become = (100+10) = Tk.110
Then, after 10% decrease new price = 110 - 10/100×110 = Tk.99
Net decrease = 100 - 99 = Tk.1
প্রশ্নঃ If interest on a savings account is paid monthly at an annual rate of percent and if the interestis not reinvested, then in how many years will the total amount of interest earned equal the amount of money saved in the account?
Here, Interest = Principal
We know, Interest = (prinicpal×time×rate)p/100
Interest = (interest × time ×61/4o/100
time = 100×4/25
Time = 16 years
The mind has a much greater capacity for memory than was previously believed
The physical basis for memory is clear .
Different points of view are valuable.
Human memory is inefficient .
By electric stimulation
By chemical Stimulation
Can understood by examining the physiology
Is stimulated by patterns of activity
Has a limited combination of relationships
Is not influenced by repetition
প্রশ্নঃ In a certain community, property is assessed value. if a tax payer is assessed TK. 240 per quarter in property taxes, what is the appraised value of the property?
Total tax of assessed = ( 240×4) Tk. = 960Tk.
Tk. 4 is tax of Tk. 100
Tk.960 is tax of Tk. ( 100/4 ×960) = 24000 Tk.
So, 60% of x = 24000Tk.
60x×x /100 = 24000
x = 2400000/60 = 40000 Tk.
3minutes 30 seconds
3minutes 20 seconds
প্রশ্নঃ Rashed can stuff advertising circulars into envelopes at the rate of 45 envelopes per minute and Reena require a minute and a half to stuff the same number of envelopes. Working together, how long will it take Rashed and Reena to stuff 300 envelopes?
প্রশ্নঃ At a certain party attended by 32 people, 24 werw students. If 12 of those in attendance were woman, and if 6 of the women in attendance were students, then how many of the men who attended the party were not students?
প্রশ্নঃ Al-Ahram is a newspaper published in---
Al-Ahram founded on 5 August 1875, is the most widely circulating Egyptian daily newspaper, and the second oldest after al-Waqa'i`al-Masriya (The Egyptian Events, founded 1828).
It is majority owned by the Egyptian government, and is considered a newspaper of record for Egypt.
প্রশ্নঃ Sir John Hicks was a(n)--
Sir John Hicks (8 April 1904 – 20 May 1989) was a British economist.
He is considered one of the most important and influential economists of the twentieth century.
The most familiar of his many contributions in the field of economics were his statement of consumer demand theory in microeconomics, and the IS–LM model (1937), which summarised a Keynesian view of macroeconomics.
His book Value and Capital (1939) significantly extended general-equilibrium and value theory.
The compensated demand function is named the Hicksian demand function in memory of him.
প্রশ্নঃ Who invented the radio and wireless system?
The invention of radio communication spanned many decades of experimental investigation of radio waves, establishment of theoretical underpinnings, engineering and technical developments, and adaptation to signaling.
The work of many scientists culminated in the building of an engineering complete and commercially successful wireless communication system by Guglielmo Marconi, who is usually credited as the inventor of radio.
George Barnard Shaw
প্রশ্নঃ The book Das Kapital was written by--
Karl Heinrich Marx FRSA was a German philosopher, economist, historian, sociologist, political theorist, journalist and socialist revolutionary.
Born in Trier, Germany, Marx studied law and philosophy at university.
He married Jenny von Westphalen in 1843.
Due to his political publications, Marx became stateless and lived in exile with his wife and children in London for decades, where he continued to develop his thought in collaboration with German thinker Friedrich Engels and publish his writings, researching in the reading room of the British Museum.
A Persian poet
Well known for his epic 'Shahnama'
Both a and b
None of the above
প্রশ্নঃ Ferdousi was --
Ferdowsi was a Persian poet and the author of Shahnameh which is one of the world's longest epic poems created by a single poet, and the national epic of Greater Iran.
Ferdowsi is celebrated as one of the most influential figures of Persian literature and one of the greatest in the history of literature.
প্রশ্নঃ Alexander Fleming discovered---
আলেকজান্ডার ফ্লেমিং পেনিসিলিন আবিষ্কার করেছিলেন আকস্মিক এক ঘটনাক্রমে।
স্ট্যাফাইলোকক্কাস নামক জীবাণু নিয়ে কাজ করতে গিয়েই তিনি এমন এক ধরনের ছত্রাকের সন্ধান পান, যার জীবাণুনাশক ক্ষমতা রয়েছে।
ছত্রাকটির নাম ‘পেনিসিলিয়াম নোটেটাম’।
ফ্লেমিং ছিলেন স্কটল্যান্ডনিবাসী চিকিৎসক ও জীবাণুতত্ত্ববিদ।
প্রশ্নঃ The first Nobel prize given to an Asian was for his work in---
Asians have been the recipients of all six award categories: Physics, Chemistry, Physiology or Medicine, Literature, Peace, and Economics.
The first Asian recipient, Rabindranath Tagore, was awarded the Literature Prize in 1913.
The most Nobel Prizes awarded to Asians in a single year was in 2014, when five Asians became laureates.
The most recent Asian laureates, Japanese scientist Akira Yoshino and Indian economist Abhijit Banerjee were awarded their prizes in 2019.