Number System Four-fifth of a number is 10 more than two-third of the same number. What is the number? 75 35 91 89 75 35 91 89 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 10 14 16 12 10 14 16 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1192 1200 1092 1082 1192 1200 1092 1082 ANSWER DOWNLOAD EXAMIANS APP
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 90 120 160 60 90 120 160 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
Number System What is the least number to be subtracted from 696 to make it a perfect square? 71 20 1 16 71 20 1 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The numbers less than 696 and are squares of certain numbers are 676, 625.The least number that should be subtracted from 696 to make it perfect square = 696 - 676 = 20.
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 47 45 44 46 47 45 44 46 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46