the length of a rectangular field is increased by 50% and its breadth is decreased by 50% to form a new rectangular field find the percentage change in the area of the field
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let l be x
b be y
area 1 = lb cm^2 = xy cm ^2
atq
l (2) = 1.5 x
b (2) = 0.5 y
area (2) = 7.5 xy cm ^2
change in area = 650%
b be y
area 1 = lb cm^2 = xy cm ^2
atq
l (2) = 1.5 x
b (2) = 0.5 y
area (2) = 7.5 xy cm ^2
change in area = 650%
Chiris:
area (2) = 150
decreas % = 50 ÷ 200 × 100 = 25 %
thank u
ha bss bss
50÷200×100 nhi samjhe
50 kaha se aaya devide me
200 - 150
50÷200 se devide kyu
% change = change ÷ original
ok
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