Question
The area of a circular field is 13.86 hectares. Find the
cost of fencing it at the rate of Rs. 4.40 per metre.Solution
By using the above formula, the area of the field β Οr2 = 13.86 Γ 10000 β (22/7)r2 = 138600 β r2 = (7/22) Γ 138600 β r2 = 44100 β r = 210 m Length of circular field = 2Οr Length of circular field = 2 Γ (22/7) Γ 210 = 1320 m. Hence, the cost of fencing it at the rate of Rs. 4.40 per meter β 1320 Γ 4.4 = 5808 β΄ The cost of fencing is Rs. 5808.
What will be the output of the code
int main(){
int x= 10;
int y=10;
int s=-(-x-y)
cout<
return 0;
}
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