Question

9. The number 650 is decreased to 500 in the ratio a : b; find the ratio a : b.
10. The number 800 is increased to 960 in the ratio a: b; find the ratio a : b.




can you please answer it fast
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Answer 1

Answer:

13:10

5 : 6

Step-by-step explanation:

the number decreased from 650 to 500

=650:500

=65:50

=13:10

a:b=13:10

the number increased from 800:960

=800:960

=80:96

=5:6

a:b=5:6

Answer 2

Answer

650/500

00cut

65/50 left

Cut cut

13/10 ans