Number System The Twenty-First Century will start on January 1 in the year 2101 2000 2001 2100 2101 2000 2001 2100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2001
Number System On converting the following base-2 numeral in base ten, 1101101, we get 106 108 109 107 106 108 109 107 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 109
Number System Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ? Rs. 5000 Rs. 3000 Rs. 2000 Rs. 4000 Rs. 5000 Rs. 3000 Rs. 2000 Rs. 4000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the amount be x.∴ X x 20/100 x 25/100 x 30/100 = 75∴ X = 75 x 5 x 4 x 10/3 = 5000
Number System If the sum of 4 consecutive odd numbers is 104, what will be the third number if they are arranged in ascending order ? 27 28 30 29 27 28 30 29 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the consecutive odd number be x, x + 2, x + 4 and x + 6 respectively.According to the question x + x + 2 + x + 4 + x + 6 = 104 = 4x + 12 = 104 = 4x = 104 - 12 = 92∴ x = 92/4 = 23∴ Required number = x + 4= 23 + 4 = 27
Number System What is the value of ? in the following equations ? 72/? = ?/50 100 60 80 40 100 60 80 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 103 95 99 92 103 95 99 92 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
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