Question

A worker did 0.256 of her work on the first day, 0.321 of the work on the second day and 0.2999 of the work on the third day. What part of the work remained?

Answer 1

Answer:

ᴡᴏʀᴋ ᴏɴ ꜰɪʀꜱᴛ ᴅᴀy =0.256

ᴡᴏʀᴋ ᴏɴ ꜱᴇᴄᴏɴᴅ ᴅᴀy = 0.321

ᴡᴏʀᴋ ᴏɴ ᴛʜɪʀᴅ ᴅᴀy = 0.299

= 0.256+0.321+0.299

= 0.876 ᴀɴꜱᴡᴇʀ

ᴛʜᴇɴ ᴡᴇ ʜᴀᴠᴇ ᴛᴏ ᴅɪᴠɪᴅᴇ 0.876 ÷4

ᴀɴꜱ : 0.219

ᴀɴᴅ ᴛʜᴇɴ ꜱᴜʙᴛʀᴀᴄᴛ ꜰʀᴏᴍ 0.219 - 4

ᴀɴꜱ : 0.214

Answer 2

Answer:

The part of the work remained is 0.1231.

Step-by-step explanation:

Given the part of the work done on first day = 0.256

The part of the work done on second day = 0.321

The part of the work done on third day = 0.2999

The work that is completed in 3 days is given by the sum of all the portions of the work done. i.e.,

$0.256+0.321+0.2999=0.8769$

Let the total unit of work done is 1.

Then the portion of the work remaining is given by the difference, $1-0.8769$

Since there are 4 digits after the decimal in the second number, take a decimal and put 4 zeroes after 1.

$1.0000\\\underline{0.8769}\\0.1231$

Therefore, the part of the work remained is 0.1231.

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