A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in evaluation ?
Answers
Answered by
6
HEY HERE IS YOUR ANSWER
LET THE NUMBER BE X
ACTUAL NUMBER =X*5/2=5X/2
WRONG MULTIPLED NUMBER=X*2/5=2X/5
ERROR =5X/2-2X/5
TTAKING LCM 10
SOO 5X/2-2X/5=25X-4X/10=21X/10
%error=error/actual no.*100
%ERROR=21X/10/5X/2*100=21X*2*100/10X*5
ON SOLVING WE GET 84%
SOOO ERROR %=84%
HOPE IT HELPS YOU
BE BRAINLY
LET THE NUMBER BE X
ACTUAL NUMBER =X*5/2=5X/2
WRONG MULTIPLED NUMBER=X*2/5=2X/5
ERROR =5X/2-2X/5
TTAKING LCM 10
SOO 5X/2-2X/5=25X-4X/10=21X/10
%error=error/actual no.*100
%ERROR=21X/10/5X/2*100=21X*2*100/10X*5
ON SOLVING WE GET 84%
SOOO ERROR %=84%
HOPE IT HELPS YOU
BE BRAINLY
492795:
Thanks Friend
Similar questions