Number System 3√103823 = ? 44 41 52 47 44 41 52 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√103823 = 3√47 x 47 x 47 = 47
Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 240 140 160 180 240 140 160 180 ANSWER DOWNLOAD EXAMIANS APP
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 824 920 712 625 824 920 712 625 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 25 23 26 24 25 23 26 24 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
Number System 75% of 250 - ?% of 380 = 54.5 31 33 39 35 31 33 39 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 250 x 75/100 - 380 x ?/100 = 54.5= 250 x 75 - 380 x ?= 54.5 x 100= 18750 - 380 x ?= 5450= 380 x? = 18750 - 5450= 13300= ? = 13300/380 = 35
EXAMIANS