Mathematics
Medium
Question
The average height of five pupils is 68 inches. If one 70 inches and other three are 76 inches, then what is the height (in inches) of the fifth pupil?
A
36
✓ Official correct answer
B
38
C
40
D
42
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
36
No member explanations yet for this option.
B
38
No member explanations yet for this option.
C
40
No member explanations yet for this option.
D
42
No member explanations yet for this option.
Explanation
Total length = 5x68= 340
Sum of four pupil = 70+76+76+76 = 298
Height of fifth pupil = 340 - 298 = 42 inches
Sum of four pupil = 70+76+76+76 = 298
Height of fifth pupil = 340 - 298 = 42 inches