case (30% decrease (c) 28% decrease (d) 25% decrease
22. Length of a rectangle is increased by 50 %. How much % breadth should be rea
so that there is no change in area.
किसी आयत की लम्बाई में 50 % की वृद्धि की गई उसकी चौड़ाई में कितने प्रतिशत
की जाए जिससे कि क्षेत्रफल समान रहे ।
(a)32 % (b) 33% (c) 40 %
(d) 50 %
Answers
Answered by
4
Answer:
Step-by-step explanation:
the answer is 33%
a=l*b
now l increased by 50%
means l=1.5l
area=1.5l*xb
l*b=1.5lb*x
x=0.666666=0.67
so if decreased by 33%
b=b-33b/100=0.67b
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