(1)今年三月份,全校做好人好事864件。五(1)班共做68件好人好事,其中10件被学校评为“典型事例”并进行表扬。五(1)班受到表扬的好人好事占全校好人好事的几分之几?
(2)五(2)班的小聪和小明经常去慰问孤寡老人,小聪每5天去一次,小明每7天去一次,3月5日两人一起去慰问了孤寡老人,下一次一起慰问是哪一天?

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

