Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 180 140 160 240 180 140 160 240 ANSWER DOWNLOAD EXAMIANS APP
Number System If the numberator of a fraction is increased by 50% and denominator by 20% the fraction become 9/15. What was the original fraction ? 6/7 12/25 13/25 3/5 6/7 12/25 13/25 3/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fraction be x/yWe have 150x/120y = 9/15= x/y = 12/25
Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 76 77 75 78 76 77 75 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 22 1/2 30 45 40 22 1/2 30 45 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 920 712 625 824 920 712 625 824 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 1827÷ 36 x ?=162.4 1.9 4.3 3.2 2.6 1.9 4.3 3.2 2.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3.2
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