in a leading School of city 700 student were at an excursion in 2010 while form the same school 840 student when in 2011 what is the percent increase in people going to excretion
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increase-140
people in 2010-700
soincrease%=140÷700×100
=20%
people in 2010-700
soincrease%=140÷700×100
=20%
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