Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 48 50 47 49 48 50 47 49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
Number System What is the least number, which is perfect square but contains 2700 as its factor? 5400 2700 10800 1800 5400 2700 10800 1800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 12849 13849 11849 14849 12849 13849 11849 14849 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.5 x ?/100 = 4.78 x 1255/100 + 3.24 x 440/100= 59.989 + 14.256∴ ? = 74.245 x 100/0.5 = 14849
Number System Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be? 10, 5 7, 8 6, 9 9, 6 10, 5 7, 8 6, 9 9, 6 ANSWER DOWNLOAD EXAMIANS APP
Number System What should come in the place of ' ? ' in the following number series ? 2, 5, 9, 19, 37, ? 75 78 76 77 75 78 76 77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2 x 2 + 1 = 5;5 x 2 - 1 = 99 x 2 + 1 = 19: 19 x 2 - 1 = 3737 x 2 + 1 = 75
Number System Find the number of factors of 300 excluding 1 and itself. 15 16 14 18 15 16 14 18 ANSWER DOWNLOAD EXAMIANS APP
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