Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 485 490 495 480 485 490 495 480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System 35%of ?=242 487 542 394 693 487 542 394 693 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 693
Number System If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ? 131 101 111 121 131 101 111 121 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 In how many different ways can the letters of word "COLLEGE" be arranged ? 1300 1240 1280 1260 1300 1240 1280 1260 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 7!/2!2! = 1260(∵ L and E come twice)
Number System 20% of the total number of students in a school play football. How many students do not play football if the total number of students in the school is 7600 ? 6000 5800 6080 5976 6000 5800 6080 5976 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 20% of 7600 = 1520Therefore, students who do not play football = 7600 - 1520 = 6080
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.684 8.584 8.484 8.784 8.684 8.584 8.484 8.784 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
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