Number System ?125÷5x ?=6265 124 1253 153 1452 124 1253 153 1452 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1253
Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 10 8 9 11 10 8 9 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
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 5976 6080 5800 6000 5976 6080 5800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 20% of 7600 = 1520Therefore, students who do not play football = 7600 - 1520 = 6080
Number System Find the number which multiplied by 15 is increased by 196. 28 14 20 26 28 14 20 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,15x - x = 196x = 14
Number System The difference between two integers is 5. Their product is 500. Find the numbers. 21, 26 20, 25 30, 25 15, 20 21, 26 20, 25 30, 25 15, 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 23 24 26 25 23 24 26 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be (x + 1) and x.Therefore, (x + 1)² - x² = 47x² + 2x + 1 - x² = 472x + 1 = 47Therefore, x = 46/2 = 23
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