Number System What is the difference between the local values of 3 in the number 53403? 3030 2997 0 3003 3030 2997 0 3003 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number ? Rs. 1054 Rs. 945 Rs. 986 Rs. 926 Rs. 1054 Rs. 945 Rs. 986 Rs. 926 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 If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 75 88 64 54 75 88 64 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System In how many different ways can the letters of the word CORPORATION be arranged ? None of these 2326400 3326400 1326400 None of these 2326400 3326400 1326400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400
Number System (164 x 175) x ? = 258300 2 9 11 5 2 9 11 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 258300 / 164 x 175 = 9
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 120 116 112 124 120 116 112 124 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a + b = 16 Therefore, (a+b)² = (16)² = 256 a² + b² + 2ab = 256Therefore, a² + b² = 256 - 2 x 68Therefore, a² + b² = 256 - 136 = 120
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