A towel was 75 cm long and 120cm broad. When bleached, it was to have lost 40% of its length and 20% breadth. The percentage of decrease in area is:
Original area = 75 × 120 = 9,000 sq cm. Reduced length = 60% of 75 cm = 45 cm Reduced breadth = 80% of 120 cm = 96 cm Reduced area = 45 × 96 = 4,320 sq cm Reduction in area = 9,000 – 4,320 = 4,680 sq m. ∴ % Reduction = 4,680/(9,000 ) × 100 = 52%. ALTERNATE METHOD: Let Length of Rectange = 100 & breatdh of rectangle= 100 So area = L×B = 100×100 = 10000 So new length = 60 & new breadth = 80 So new area = L×B = 60×80 = 4800 ∴ % Reduction = (10000-4800)/10000× 100 = 5200/10000× 100 = 52%.
Given below are six sentences, out of which sentences A and F are in the correct position. Sentences B, C, D and E are in a jumbled order. Select the op...
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P. that Indians are litigious
Q. faith in the judiciary than in the
R. are clogged with p...
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What sentence should come second in the paragraph?
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1. There was no
P. were already terrified
Q. dwarfs because they
R. need for the
S. giant to glower at the
6. of his huge size.
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P. cactus in food
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R. elaborated on the
S.Â...