Question

Please tell me ncert class 7 ch 2 question 1 solution​ exercise 2.2

Answer 1

QUESTION,

✯SOME PICTURES a TO c ARE GIVEN BELOW. TELL WHICH OF THEM SHOW,

$\red{\text{ncert class 7 chapter 2 question 1 solution exercise 2.2}}$

$\sf\large{\star \: a) 3 \times \dfrac{1}{5} = \dfrac{3}{5}}$

ANSWER✔

$\large\underline\bold{OPTION\: :- C, IS\:CORRECT.}$

$\red{\text{REFER THE ATTACHMENT.}}$

REASON,

$\sf\star \:\: \text{there are three rectangles , each rectangle contains 5 parts in it .}$

$\sf\therefore \text{ the shaded part of three rectangles are,}$

$\sf\therefore \: for\:first\:rectangle,$

$\sf\dashrightarrow \text{ from five parts one of them is shaded.}$

$\sf\therefore SIMILARLY,\:FOR\:OTHER\:TWO\:RECTANGLES.$

$\sf\therefore \text{from five parts one shaded, }$

$\sf\dashrightarrow \text{ it can be written in the form of fraction as}$

$\sf{\:\:\:\:\:\:\:\:\:\:\:\:\:\dashrightarrow \dfrac{1}{5}}$

$\sf\therefore \text{ there are three rectangles each containing 5 parts ,}$

$\sf{\:\:\:\:\:\:\:\:\:\:\:\: \therefore \: \dfrac{1}{5} +\dfrac{1}{5} +\dfrac{1}{5} = \dfrac{ 3}{5}}$

$\sf\star \:\:and \:\: \dfrac{3}{5} \: can\:also\:be\:written\:as,$

$\sf{\:\:\:\:\:\:\:\:\:\:\:\:\:\dashrightarrow \dfrac{1}{5} \times 3 = \dfrac{3}{5}}$

$\sf\star \:\:where \:\: \dfrac{1}{5}\: is \:a\:part\:of\:rectangle\:shaded,and has\:three\:such\:rectangles\:rectangles.$

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