Number System Sum of two consecutive even terms lacks by 98 from their product. Find the sum of these number 18 24 None 32 18 24 None 32 ANSWER DOWNLOAD EXAMIANS APP
Number System 8988 / 8 / 4 = ? 4494 2247 561.75 280.875 4494 2247 561.75 280.875 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
Number System Sum of square of first number and cube of second number together is 568. Also square of the second number is 15 less than square of 8. What is the value of three-fifth of the first number ? 8 6 9 7 8 6 9 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the first number be x and the second number be y.∴ y² = 82 - 15 = 64 - 15 = 49∴ y = 7∴ x² + 73 = 568= x² + 343 = 568= x² + 568 - 343 = 225∴ x = √225 = 15∴ 15 x 3/5 = 9
Number System If 5/7 of a number is 145, what is 180% of that number ? 345.4 365.4 355.4 375.4 345.4 365.4 355.4 375.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System What is the least number that should be added to 5200 to make it a perfect square ? 275 288 225 129 275 288 225 129 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 Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 160 180 140 240 160 180 140 240 ANSWER DOWNLOAD EXAMIANS APP
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