Number System √207.36 = ? 15.7 12.3 16.7 14.4 15.7 12.3 16.7 14.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
Number System 384×12×2=? 8465 9216 6123 7487 8465 9216 6123 7487 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 82 83 84 81 82 83 84 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System The product of two consecutive odd numbers is 4095 What is the greater number ? 69 74 65 61 69 74 65 61 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the two consecutive odd numbers be 2x - 1 and 2x + 1.(2x - 1) (2x - 1) = 4095= 4x² - 1 = 4095= 4x² = 4096= x² = 1024∴ x = 32∴ The numbers are 63 and 65.Greater number = 65
Number System The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number ? Rs. 926 Rs. 986 Rs. 945 Rs. 1054 Rs. 926 Rs. 986 Rs. 945 Rs. 1054 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.78% of x - 59% of x = 323= 78x - 59x/100 = 323= 19x/100 = 323∴ x = 323 x 100/19 = 1700= 62% of 1700 = 1700 x 62/100 = 1054
Number System What should come in the place of question mark (?) in the number series given below? 158 159 157 160 158 159 157 160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 160
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