Question

Solve the following word problem:-

If 48 keys out of 80 keys of a piano are white and rest are black, what fraction of the total keys are black?

pls step-by-step answer dena....



irrelevant answer mat dena bros/sisos​

Answer 1

Answer:

total keys of piano = 80

total white keys of piano = 48

So, total no. of Black keys of piano = total keys of piano - total white keys of piano

Step-by-step explanation:

80 - 48 = 32

hence, there are 32 black keys in the piano.

so, the fraction of Black keys of piano = 80 - 48/80

= 32/80

hence, simple ratio of 32/80 = 2/5

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Answer 2

Answer:

total keys of piano = 80

total white keys of piano = 48

So, total no. of Black keys of piano = total keys of piano - total white keys of piano

80 - 48 = 32

hence, there are 32 black keys in the piano.

so, the fraction of Black keys of piano

= 80 - 48/80

= 32/80

Hence, simple ratio of 32/80 = 2/5