2.5
5
6.25
6.52
7.5
Correct answer is C
No explanation has been provided for this answer.
\(\frac{3}{5}\)
\(\frac{2}{5}\)
\(\frac{4}{15}\)
\(\frac{1}{5}\)
\(\frac{2}{15}\)
Correct answer is C
No explanation has been provided for this answer.
9.60m
6.06m
2.54m
2.53m
2.00m
Correct answer is D
No explanation has been provided for this answer.
14.1cm2
95.5cm2
190.9cm2
381.9cm2
763.7cm2
Correct answer is D
No explanation has been provided for this answer.
51
48
30
25
18
Correct answer is C
Let the total score for the girls and the boys be A and B respectively.
\(\frac{A}{20} = 52 \implies A = 52 \times 20\)
A = 1040
\(\frac{B}{y} = 57 \implies B = 57y\)
1040 + 57y = 2750
57y = 2750 - 1040
57y = 1710
y = \(\frac{1710}{57}\)
y = 30