If 30 marks is 40%, what is the full mark?

100% are 75 marks because, 30 + 30 = 60 (40%+40%) then you half 30 which is 15 60+15=74 (you half the 40 and add 80 to 20 20+80=100) 75 marks
helped?
can you put me on the brainlest answer? please

Answered by hello125 | 2024-06-10

Let the full marks be y.
Then, the statement become : 30 marks is 40 % of y.
to solve for y;
40% of y can be written as 100 40 ​ × y
Then,
from the given condition we have;
100 40 ​ × y = 30
or
10 4 ​ y = 30
Multiply both sides by 4 10 ​ in above equation;
10 4 ​ y × 4 10 ​ = 30 × 4 10 ​
Simplify:
y = 4 300 ​ = 75
Then, the full marks (y) = 75.
Therefore, 30 marks is 40% of 75.
Check:
30 = 100 40 ​ × 75
30 = 0.4 × 75
30 =30 [True] ;

Answered by OrethaWilkison | 2024-06-11

The full marks that correspond to 30 being 40% is 75. We determined this by setting up an equation based on the percentage relationship. The calculation confirmed that 30 is indeed 40% of 75.
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Answered by OrethaWilkison | 2024-10-01