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.40 Rs.30 Rs.20 Rs.25 Rs.40 Rs.30 Rs.20 Rs.25 ANSWER DOWNLOAD EXAMIANS APP
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 83 82 84 81 83 82 84 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System Two third of three- fifth of one fourth of a number is 24, what is 30% of that number? 42 72 69 90 42 72 69 90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72
Number System If the following fractions 7/6, 6/7, 5/3, 8/13 and 6/5 are arranged in descending order, which will be the last in the series? 9/13 6/13 8/13 7/13 9/13 6/13 8/13 7/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/6 = 1.166, 6/7 = 0.857,5/3 = 1.66,8/13 = 0.615,6/5 = 1.2Therefore, 5/3 > 6/5 > 7/6 > 6/7 > 8/13
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 24 27 21 36 24 27 21 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2504 2508 2520 2510 2504 2508 2520 2510 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
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