Question

If 20% unit of 220 units are rejected,find the no. of rejected and agreed units.

one 2600 square cm metal sheet was purchased to make tokens. 45% of sheet was expended in preparing quadrilateral tokens. The rest was used to prepare circular tokens and 24% of sheet was wasted. Find out the quantity of sheet wasted.​

Answer 1

Answer:

No. of units rejected = 44

No. of units agreed =176

Step-by-step explanation:

No. of rejected units=20/100×220

=0.2×220

=44

No. of units agreed =220-44

=176

Answer 2

1)

Given:

  Total number of units $=220\ units$

   Percentage of units rejected $=20\%$

To Find:

Number of agreed units

Step by step explanation:

Number of agreed units $= Total \ units - Rejected \ Units$

   $=220-20\% \ of\ 220\\\\=220-\frac{20}{100}\times 220=220-44=176\ units$

  Hence 176 units are agreed units.

2)

Given:

Area of metal sheet that was purchased$= 2600 \ cm^2$

Percentage of sheets used for making quadrilateral tokens$=45\%$

Percentage of sheets wasted$=24\%$

To find:

Quantity of wasted sheet.

Step by Step solution:

  Percentage of sheets used for making circular tokens

   $=(100-(45+24) )\%=31\%$

   Quantity of sheets that got wasted $=24\% \ of \ 1600 \ cm^2$

   $=\frac{24}{100}\times 1600=384 \ cm^2$

    Hence 384 cm² area of the given sheet got wasted.

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