Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 16 10 12 14 16 10 12 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
Number System What is the least number that should be added to 5200 to make it a perfect square ? 288 129 275 225 288 129 275 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP We sec (73)² = 5329 and (72)² = 5184ie 5329 > 5200 > 5184So 129 should be added to make is perfect square.
Number System If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is: 73/77 93/77 77/73 83/77 73/77 93/77 77/73 83/77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 73/77
Number System A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13? 7 0 5 11 7 0 5 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39 + 20 = 59/13 = 7 (Remainder)
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1200 1082 1192 1092 1200 1082 1192 1092 ANSWER DOWNLOAD EXAMIANS APP
Number System 148 x 3.75 x 4 = 111 x ? 24 19 20 17 24 19 20 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 148 x 3.75 x 4/111 = 20
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