Question

solve step by step
The unitary method
if 12 rubber balls cost ₹60 how many such balls can one buy for ₹90​​

Answer 1

Answer:

18 balls

Step-by-step explanation:

12==>60

x===>90

x=(12*90)/60

x=90/5

x=18

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Answer 2

$cost \: of \: 12 \: rubber \: balls = rs60$

$cost \: of \: 1 \: ball = \frac{60}{12}$

$= rs5$

$no. \: of \: balls \: that \: can \: be \: bought \: in \: rs90 = \frac{rs90}{rs5}$

$= 18 \: balls$

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