Number System (√6 + 1)² = ? + 2√6 7 8 5 6 7 8 5 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7
Number System What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 210 204 222 234 210 204 222 234 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Avg = 173 + 192 + 198 + 204 + 211 + 223 + 227/7 = 1428/7 = 204
Number System If 70% of an equal to 40% of b, then ratio between a and b is? 7: 11 7: 4 None 4: 7 7: 11 7: 4 None 4: 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 70 a = 40 ba: b = 4: 7
Number System Find the least value of 3x + 4y if x2y3 = 6. 3 7 10 6 3 7 10 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 160 140 240 180 160 140 240 180 ANSWER DOWNLOAD EXAMIANS APP
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 180 60 120 260 180 60 120 260 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
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