Question

9. find sum of 15% of 75 and 5% of 75. Is it equal to 20% of 75?​

Answer 1

Answer:

75 * 15%

= 11.25

75 * 5%

= 3.75

11.25+3.75

= 15

75 * 20%

= 15

Yes it is equal.

Answer 2

Answer:

$as \: we \: know..........$

$n = 15$

$a = 5$

a¹⁵=75

So.......

Sum=n/2[a¹+an]

=15/2[5+75]

=15/2[80]

=600

Step-by-step explanation:

This your required answer.......

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