20%, 30% এবং 20% পরপর তিনটি ডিসকাউন্ট দেওয়া হয়েছে, নেট ডিসকাউন্ট কত হবে (পারসে...

Three successive discounts of 20%, 30% and 20% are given, what will be the net discount (in percentage)?

If the sides of an equilateral triangle are increased by 20%, 30% and 50% respectively to form a new triangle, what is the percentage increase in the perimeter of the equilateral triangle ?

There are three different cable channels namely Ahead, Luck and Bang. In a survey it was found that 85% of viewers respond to Bang, 20% to Luck, and 30% to Ahead. 20% of viewers respond to exactly two channels and 5% to none. What percentage of the viewers responded to all three?

What is the number whose 20% is 30% of 40 ?

If 20% of 30% of a certain number is 3000, find the number.

If the sum of 20% & 30% of a number is 324. Find the 75% of that number.