A school's enrollment of students increased by 10% in 2015, another 20% in 2016, and then decreased by 30% in 2017. If the percentage of students receiving scholarships was 25% in 2015 and increased to 40% in 2017, calculate the percentage change in the number of scholarship students.
ATQ, Let the enrollment in 2015 be 800 students. In 2016, enrollment = 1.10×800=880. In 2017, enrollment = 1.20×880=1056. In 2017, enrollment decreased by 30% = 0.70×1056=739.2. Scholarship students in 2015 = 0.25×800=200. Scholarship students in 2017 = 0.40×739.2=295.68. Percentage change in scholarship students = {(295.68−200)/200}×100% = 47.84%. Therefore, the number of scholarship students increased by 47.84% from 2015 to 2017.
(4096)1/3 × 10.11 × 11.97 ÷ 24.32 = ?+ 15.022
(124.99)² = ?
? = 685.24 + 1024.97 – 9.992
(?)2 + 4.113 = 23.92 – 28.03
510.11 ÷ 16.98 × 5.14 – 119.9 = √?
(32.18% of 2399.89 - √624 × 26.25) % of 149.79 = ?
?3 - (77.98 ÷ 6.09 + 10.12)2 + (2.015 - 11.983)2 = 20.01 × (215.98(2/3) - √36.03)
2380.03 ÷ 84.98 x 39.9 = ? + 15.32
20.05% of 450.05 – 15.15% of 119.99 × 4.02 = ?
What is the value of "π"
