Math, asked by RPLSBHAVYA, 5 months ago

4/7 of 80% of a number is 640
what is its
its 120. ?
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Answers

Answered by devanshchoudhary777
1

Answer:

We know the 80% is x and we know 2/7 of x = 640.

640=2/7x

640/2=320 so 320 is 1/7

if we multiply 320 x 7, it’s a whole fraction now

= 2240

so 2240 is 80% of a number

now let’s convert percentages to fractions

80% = 4/5

2240/4= 560

if 560 is 1/5 then five times that is 2800

We now have the whole number

time to find 120%

100% + 20%

100% = 2800

2800/5=560=20%

so 2800+560=3360

Thus, the number is 3360

Answered by raiupasana0
1

Answer:

the answer for ur question is 3,360

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