একটি ডিসকাউন্ট সিরিজ 10%,20% এবং 40% সমান ক্লাস 7 | গড় | গণিত...

The value of a single discount on some amount which is equivalent to a series of discounts of 10%, 20% and 40% on the same amount, is equal to

The value of 20% of 40% of 100 is____.

40% of [ 100 – 20% of 300] is equal to

10%" of "20%" of "100" is equal to "_.

If 10% of x = 20% of y, then x: y is equal to :