alleryഒരു ദീർഘചതുരത്തിൻ്റെ നീളം 20% ഉയരുന്നു, വീതി കുറയുന്നു 10%; ഏരിയ മാറ്റം?
A12% വർദ്ധനവ്
B8% വർദ്ധനവ്
C8% കുറവ്
D10% വർദ്ധനവ്
Answer & Solution
Correct answer: B. 8% വർദ്ധനവ്
പുതിയ ഏരിയ 1.20 × 0.90 = 1.08 പഴയ ഏരിയയുടെ 8% വർധനയാണ്.
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