Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 45 54.7 42.1 42.6 45 54.7 42.1 42.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 17 11 15 13 17 11 15 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 39 42 40 41 39 42 40 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System Find the nearest to 25268 which is exactly divisible by 467? 25308 25218 25228 25208 25308 25218 25228 25208 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the least number that should be added to 5200 to make it a perfect square ? 288 275 225 129 288 275 225 129 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP We sec (73)² = 5329 and (72)² = 5184ie 5329 > 5200 > 5184So 129 should be added to make is perfect square.
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 47 45 46 44 47 45 46 44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
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