Number System Find the least value of 3x + 4y if x2y3 = 6. 7 10 6 3 7 10 6 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System 1827÷ 36 x ?=162.4 1.9 3.2 4.3 2.6 1.9 3.2 4.3 2.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3.2
Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 144/25 25/144 12/5 5/12 144/25 25/144 12/5 5/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System The simplest form of 1.5 : 2.5 is : 3 : 5 17 : 19 13 : 11 5 : 7 3 : 5 17 : 19 13 : 11 5 : 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
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 ? 12/25 3/5 13/25 6/7 12/25 3/5 13/25 6/7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fraction be x/yWe have 150x/120y = 9/15= x/y = 12/25
Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 124 146 179 163 124 146 179 163 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x² = 15376Therefore, x² = 15376 x = 124
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