Number System If 35% of a number is 899.5, what is 68% of that number ? 1847.6 1547.6 2247.6 1747.6 1847.6 1547.6 2247.6 1747.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System Simplify the 121 * 175 + 363 * 275 None of these 363000 316600 328100 None of these 363000 316600 328100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 8 10 9 11 8 10 9 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
Number System 64% of 2650+40% 0f 320=? 1578 2096 1824 1247 1578 2096 1824 1247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 11 13 17 15 11 13 17 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
Number System Which one of the following represents the sum of the first n even numbers? N2 N(N + 1) N2+ 1 N(N – 1) N2 N(N + 1) N2+ 1 N(N – 1) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
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