Viết chương trình nhập vào điểm kiểm tra miệng, kiểm tra 15 phút và kiểm tra 1 tiết của học kỳ 1. Tính và in ra điểm trung bình học kỳ 1 theo công thức : TBHK1 = (KTmieng + KT15p + KT1tiet* 2)/4.

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a = float(input("nhập điểm kiểm tra miệng:"))
b = float(input("nhập điểm 15 phút:"))
c = float(input("nhập điểm 1 tiết:"))
tbhk1 = (a+b+c*2)/4
print(tbhk1)

#include<bits/stdc++.h>

using namespace std;

int main(){

float diem_15_phut,mot_tiet,KT1tiet,tong;

cin>> diem_15_phut>>mot_tiet>>KT1tiet;

tong = diem_15_phut+mot_tiet+KT1tiet*2;

cout<<tong/4;

}

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