Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 44 47 46 45 44 47 46 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System 666 / 6 / 3 = ? 111 37 333 84 111 37 333 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 666 * 1/6 * 1/3 = 37
Number System Sum of square of first number and cube of second number together is 568. Also square of the second number is 15 less than square of 8. What is the value of three-fifth of the first number ? 8 7 6 9 8 7 6 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the first number be x and the second number be y.∴ y² = 82 - 15 = 64 - 15 = 49∴ y = 7∴ x² + 73 = 568= x² + 343 = 568= x² + 568 - 343 = 225∴ x = √225 = 15∴ 15 x 3/5 = 9
Number System Which is the smallest fractions among the following ? 13/15 27/31 15/19 11/13 13/15 27/31 15/19 11/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 11/13 = 0.8461,13/15 = 0.8666,27/31 = 0.87,15/19 = 0.789
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1082 1092 1192 1200 1082 1092 1192 1200 ANSWER DOWNLOAD EXAMIANS APP
Number System A man engaged a servant on the condition that he would pay him Rs.710 and a uniform after a year service. He served only for 8 months and got Rs.460 and a uniform. Find the price of the uniform? Rs.25 Rs.40 Rs.20 Rs.30 Rs.25 Rs.40 Rs.20 Rs.30 ANSWER DOWNLOAD EXAMIANS APP
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