Question

. Swapnesh wants to mail three parcels to three village schools. He finds that
the postal charges are Rs 42, Rs 63 and Rs 294. He wants to buy stamps only
of one denomination. Find the greatest denomination of stamps he must buy
to mail the three parcels.
Please find the HCF by division method​

Answer 1

We will find HCF of 42,63,294
That is 21
So must buy stamps of denominations ₹21 each

Answer 2

$Postal \:charges \: of \: parcels \: Rs \:42$

$Rs \: 63 \: and \: Rs \: 294$

/* To find greatest denomination of stamps , we have to find HCF of 42 ,63 and 294 /*

i ) HCF of 42 and 63 :

42 | 63 | 1

***** 42

____________

****** 21| 42 | 2

********** 42

____________

**********(0)

Now, HCF ( 42,63 ) = 21

ii) Finding HCF of 21 and 294:

21 | 294 | 14

***** 294

_________

*******(0)

HCF ( 21, 294) = 21

Therefore.,

$\green { Swapnesh \: has \: to \: buy \: Rs\:21 }$

$\green{denomination \:stamps \:to \:mail }$

$\green { three \: parcels }$

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