Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 45 55 35 65 45 55 35 65 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System Find the nearest to 25268 which is exactly divisible by 467? 25208 25228 25308 25218 25208 25228 25308 25218 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the value of ? in the following equations ? 72/? = ?/50 40 60 80 100 40 60 80 100 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 A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for BAT BED CAR CAT BAT BED CAR CAT ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System What is the sum of all the prime numbers from 20 to 40? 119 117 118 120 119 117 118 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System In a division sum, the quotient is 120, the divisor 456 and the remainder 333, find the dividend? 56053 50553 55053 5553 56053 50553 55053 5553 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 120 * 456 + 333 = 55053
EXAMIANS