Question

T9.Hari had three note books X,Y and Z .of these X had 120 pages.Y had 10% more pages and Z had 10% pages less.If he tore roughly 5%,10% and 15% of pages in X,Y and Z respectively,then what percent of pages did he tear out? ]

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Answer 1

Answer:

X - 95% , Y - 90% , Z - 15%

Step by step explanation

X has 120 pages

Y has 132 pages (10% more)

Z had 108 pages (10% less)

Answer 2

Answer:

The percentage of pages he tore out is 9.8

Step-by-step explanation:

They have given that Hari had three notebooks X, Y, and Z

Given that X notebook had 120 pages

They have given that Y notebook had 10% more pages.

$=\frac{10}{100}(120)$

= 12

The total number of pages in the Y notebook is

= 120 + 12

= 132

They have given that Z notebook had 10% fewer pages

The total number of pages in the Z notebook is

= 120 - 12

= 108

The percentage of pages torn by Hari in X notebook is 5%

The number of pages torn by Hari in X notebook is given by

$=\frac{5}{100}(120)$

= 6

Hari tore 10% 0f pages in Y notebook

The number of pages torn by Hari in Y notebook is given by

$=\frac{10}{100}(132)$

= 13.2

Hari tore 15% 0f pages in Z notebook

The number of pages torn by Hari in Z's notebook is given by

$=\frac{15}{100}(108)$

= 16.2

The percentage of pages he tore out is given by

$=\frac{6+13.2+16.2}{120+132+108} (100)$

$\\=\frac{35.4}{360}(100)$

= 9.8%

Therefore the percentage of pages he tore out is 9.8