Question

the weight of three balls of wool is 20 grams. how many balls of wool weight 1 kg​

Answer 1

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$\large{ \frak{ \underline{ \red{To \: find : }}}}$

Number of balls of wool weighing 1 kg.

$\large{ \frak{ \underline{ \blue{Given: }}}}$

No. of balls of wool in 20 g = 3

$\large{ \frak{ \underline{ \purple{Formula\: used : }}}}$

Unitary Method

$\large{ \frak{ \underline{ \green{Solⁿ: }}}}$

We know that,

${ \sf{1 kg = 1000 g}}$

Now,

A/q

No. of balls of wool weighing 20g = 3 balls.

∴ No. of balls of wool weighing 1 g = ${ \sf{\frac{3}{20} }}$

∴ No. of balls of wool weighing 1000g (1kg)

${ \sf{ \implies \frac{3}{ \cancel{{20} }}\times { \cancel{1000 }} = 3 \times 50 = 150 balls }}$

${ \boxed{ \sf{ \red{∴ No. \: of \: balls \: in \: 1kg = 150}}}}$

$\sf{ \blue{Hope \: it \: helps...}}$

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Answer 2

Answer:

★᭄ꦿ᭄ANSWER★᭄ꦿ᭄

\large{ \frak{ \underline{ \red{To \: find : }}}}

Tofind:

Number of balls of wool weighing 1 kg.

\large{ \frak{ \underline{ \blue{Given: }}}}

Given:

No. of balls of wool in 20 g = 3

\large{ \frak{ \underline{ \purple{Formula\: used : }}}}

Formulaused:

Unitary Method

\large{ \frak{ \underline{ \green{Solⁿ: }}}}

Solⁿ:

We know that,

{ \sf{1 kg = 1000 g}}1kg=1000g

Now,

A/q

No. of balls of wool weighing 20g = 3 balls.

∴ No. of balls of wool weighing 1 g = { \sf{\frac{3}{20} }}

20

3

∴ No. of balls of wool weighing 1000g (1kg)

{ \sf{ \implies \frac{3}{ \cancel{{20} }}\times { \cancel{1000 }} = 3 \times 50 = 150 balls }}⟹

20

3

×

1000

=3×50=150balls