Number System What should come in place of question mark (?)? 8 : 1 1 : : 72: 79 89 99 109 79 89 99 109 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99
Number System In a 150-litre mixture of milk and water, the percentage of milk is 84%. How much water should be added so that the percentage of milk becomes 52.5% ? 80 litre 85 litre 95 litre 90 litre 80 litre 85 litre 95 litre 90 litre ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In 150 litre, milk is 84%ie 150 x 84/100 = 126 litre Let us add x litres of waterTherefore, the quantity of mixture = 150 + x∴ 52.5% of (150 + x) = 126 litres 150 + x = 126x100/52.5 = 240 litres∴ x = 240 - 150 = 90 litres
Number System 0.333 .... × 0.444 .... is equal to 0.777 .... 1.333 .... 0.148148148 .... 0.121212 .... 0.777 .... 1.333 .... 0.148148148 .... 0.121212 .... ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.148148148 ....
Number System 8988 / 8 / 4 = ? 561.75 4494 280.875 2247 561.75 4494 280.875 2247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
Number System 6.4 x 8.5 x 25/3.2 x 12.5 = ? 5.6 4.5 3.4 2.3 5.6 4.5 3.4 2.3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 6.4 x 8.5 x 2.5/3.2 x 12.5 = 3.4
Number System 7432 ÷ 32 x ? = 2787 21 78 12 41 21 78 12 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
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