Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 225 295 245 275 225 295 245 275 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 88 75 54 64 88 75 54 64 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System In a division sum, the quotient is 120, the divisor 456 and the remainder 333, find the dividend? 56053 5553 55053 50553 56053 5553 55053 50553 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 120 * 456 + 333 = 55053
Number System The number of prime factors of (6)10×(7)17×(55)27 91 61 101 41 91 61 101 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
Number System The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ? 21.84 24.84 25.84 27.84 21.84 24.84 25.84 27.84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 260 60 120 180 260 60 120 180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
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