Fractions and Decimals (0.16)² - (0.12)² = ? 11.2 0.0112 1.12 .112 11.2 0.0112 1.12 .112 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = a² - b² = (a + b)(a - b)Hence, (0.16)² - (0.12)²= (0.16 + 0.12)(0.16 - 0.12)= 0.28 x 0.04 = 0.0112
Fractions and Decimals (.24 x .35 ) / (.14 x .15 x .02) is equal to ? 182 200 188 176 182 200 188 176 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (.24 x .35) / (.14 x .15 x .02)= (24 x 35 x 100 ) / (14 x 15 x 2)=200
Fractions and Decimals (369.99)² = ? 1369 None of these 1369 x 10² 1369 x 10 1369 None of these 1369 x 10² 1369 x 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1369 x 10²
Fractions and Decimals By how much is 12% of 24.2 more than 10% of 14.2 ? 1.884 1.684 1.484 1.284 1.884 1.684 1.484 1.284 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required difference = (12 x 24.2) / 100 - (10 x 14.2) / 100= 2.904 -1.42 = 1.484
Fractions and Decimals (44.99)² - (15.01)² = ? 1500 1800 1100 700 1500 1800 1100 700 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a² - b² = (a + b)(a - b)Hence, (44.99)² - (15.01)² = (44.99 + 15.01)(44.99 - 15.01)= 60 x 29.98 = 60 x 30 = 1800
Fractions and Decimals A vessel, full of water, weighs 16.5 kg. When the vessel is (1/4)th full, it weight 5.25 kg. Then, weight of the empty vessel (in kg) is ? 1000.5 kg 100.5 kg 10.5 kg 1.5 kg 1000.5 kg 100.5 kg 10.5 kg 1.5 kg ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the weight of vesel = x kg Then, 1/4 of volume of water = (5.25 - x)kg Full volume of water = (16.5 - x)∴ 4(5.25 - x) = (16.5 - x)⇒ 21 - 4x = 16.5 - x ⇒ 21 - 16.5 = 3x ∴ x = 4.5/3 = 1.5 kg
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