Number System What is the value of ? in the following equations ? 72/? = ?/50 60 100 80 40 60 100 80 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System 16.23 x 12.9 + 17.32 = ? None of these 226.687 246.687 236.687 None of these 226.687 246.687 236.687 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 16.23 x 12.9 + 17.32= 209.367 + 17.32= 226.687
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 The Twenty-First Century will start on January 1 in the year 2001 2101 2100 2000 2001 2101 2100 2000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2001
Number System What is the remainder when 263251 is divided by 9? 1 8 6 3 1 8 6 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP If the sum of the digits of a number is divisible by 9, the number will be divisible by 9.2 + 6 + 3 + 2 + 5 + 1 = 19The nearest multiple of 9 is 18.19 - 18 = 1.
Number System 56.21 +2.36+5.41 —21.4+1.5=? 34.08 54.08 44.08 64.08 34.08 54.08 44.08 64.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
EXAMIANS