Number System Two third of three- fifth of one fourth of a number is 24, what is 30% of that number? 42 69 72 90 42 69 72 90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72
Number System 4500 * ? = 3375 1/4 3/4 2/5 3/5 1/4 3/4 2/5 3/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 77 75 78 76 77 75 78 76 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System 5358 * 51 = ? 273358 273348 273258 273268 273358 273348 273258 273268 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5358 * 51 = 5358 * (50 + 1) = 5358 * 50 + 5358 * 1= 267900 + 5358 = 273258
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 54.7 45 42.6 42.1 54.7 45 42.6 42.1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System What least number should be added to 8602 to make it a perfect square ? 41 36 47 51 41 36 47 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
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