Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 103 95 92 99 103 95 92 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 62480 60480 63480 61480 62480 60480 63480 61480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
Number System (1024—263—233)÷(986—764— 156) =? 6 10 None of these 8 6 10 None of these 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System The simplest form of 1.5 : 2.5 is : 13 : 11 5 : 7 3 : 5 17 : 19 13 : 11 5 : 7 3 : 5 17 : 19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
Number System If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ? 121 131 101 111 121 131 101 111 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore x² + (182)² = 47765Therefore x² = 47765 - (182)2 = 47765 - 33124Therefore x² = 14641, Therefore x = 121
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 168 170 164 162 168 170 164 162 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
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