Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. None of these 120 30 55 None of these 120 30 55 ANSWER DOWNLOAD EXAMIANS APP
Number System What is 846 times 323 ? 273258 283298 264258 293798 273258 283298 264258 293798 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
Number System The difference between a two-digit number and the number obtained after interchanging its two digits is 36. The sum of the two digits of the number is 12. Find the lowest such possible number. 49 47 48 50 49 47 48 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the digits be x and yTherefore, x + y = 12 .............(1)(10y + x) - (10x + y) Therefore, y - x = 4............. (2)Solving (1) and (2), y = 8 Therefore, x = 4There are two possible numbers 48 and 84. So the lowest no. is 48.
Number System What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ? 7878 4545 5656 3434 7878 4545 5656 3434 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 15, (15 + 2) x 3 = 51,(51 + 3) x 3 = 162, (162 + 4) x 3 = 498, (498 + 5) x 3 = 1509(1509 + 6) x 3 = 4545
Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 94 97 86 91 94 97 86 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 61480 60480 62480 63480 61480 60480 62480 63480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
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