Question

2. The number of books sold by a shop in the year 2015 was 6843579. In the next year, the
number of books sold increased by 754326. But the number of books sold decreased by
890179 in the year 2017. Find the number of books sold in the year 2017. How many
books were sold during these three years?​

Answer 1

Number of books sold by the shopkeeper in 1st year [2015] = 68,43,579

Number of books sold in 2nd year [2016] =

= 68,43,579 + 754326

= 75,97,905

Number of books sold in 3rd year [2017] =

= 7,597,905 - 890179

= 67,07,726

HOPE IT HELPS YOU..............

Answer 2

✬ Total = 21,149,110 books ✬

Step-by-step explanation:

Given:

• Books sold in year 2015 was 6843579.
• Next year i.e in 2016 books sold was increased by 754326.
• In year 2017 book sold was decreased by 890179.

To Find:

• How many books were sold in year 2017 and how many books were sold during three years

Solution: This question is based on addition and subtraction.

• Books sold in 2015 = 6843579........(1)

• Books sold in 2016 = 754326 more than books sold in 2015. Therefore,

➟ Total books sold in 2016 = 754326 + 6843579

➟ Books sold in 2016 = 7597905

So, 7597905 books sold in 2016.....(2)

A/q

• In year 2017 selling of books reduced by 890179 therefore,

• No. of books sold in 2017 = 890179 less than books sold in 2016

➟ Books sold in 2017 = (7597905 – 890179)

➟ Books sold in 2017 = 6707726

So, 6707726 books sold in 2017......(3)

∴ Total number of books sold during these three years = Equation (1 + 2 + 3)

$\implies{\rm }$ ( 6843579 + 7597905 + 6707726 )

$\implies{\rm }$ 21,149,110 books

Hence, 21149110 books were sold during three years.