Number System If a number is subtracted from its square we get 272. Find the number? 24 14 17 22 24 14 17 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 373 363 343 353 373 363 343 353 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
Number System A bag contains eighteen 25-paise coins, seventeen 50-paise coins, twentytwo one-rupee coins, nine 2-rupee coins and three 5-rupee coins. What is the total amount in the bag (Ans in rupees) ? Rs. 62 Rs. 74 Rs. 79 Rs. 68 Rs. 62 Rs. 74 Rs. 79 Rs. 68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total = 18/7 + 17/2 + 22 + 9 x 2 + 3 x 5 = 4.5 + 8.5 + 22 + 18 + 15 = Rs 68
Number System Let R = qs—4. When s=8, R=16. When s=10, R is equal to 23 20 22 21 23 20 22 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System 1256+4813+765=? 6831 6839 6836 6834 6831 6839 6836 6834 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1256+4813+765= 6069+765=6834
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 112 116 124 120 112 116 124 120 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
EXAMIANS