Answer:
61.7
Step-by-step explanation:
Let the number be x
% increase in the number : 7
Thus , actual increase in number will be 7% of x = 7/100 of x = 7x/100
Thus, new number with 7% increase = x+ 7x/100
given that value of new number with 7% increase is 66
Thus,
x+ 7x/100 = 66
=> (100x+7x)/100 = 66
=> 107 x = 66*100
=> x = 6600/107 = 61.682
Thus, original number is 61.682
but we have to find the number to nearest tenth .
original number is 61.7
