C | Data Types | Question 3
Predict the output
#include <stdio.h> int main(){ float c = 5.0; printf ("Temperature in Fahrenheit is %.2f", (9/5)*c + 32); return 0;} |
(A) Temperature in Fahrenheit is 41.00
(B) Temperature in Fahrenheit is 37.00
(C) Temperature in Fahrenheit is 0.00
(D) Compiler Error
Answer: (B)
Explanation: Since 9 and 5 are integers, integer arithmetic happens in subexpression (9/5) and we get 1 as its value.
To fix the above program, we can use 9.0 instead of 9 or 5.0 instead of 5 so that floating point arithmetic happens.
#include <stdio.h> int main(){ float c = 5.0; printf ("Temperature in Fahrenheit is %.2f", (9.0/5)*c + 32); return 0;} |
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