Number System 36% of 850+? % of 592 = 750 25 75 50 12.5 25 75 50 12.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System In a five-litre mixture of milk and water the portion of water is 30%. How much milk should be added to the mixture so that the portion of water reduces to 5% ? 29 litre 21 litre 25 litre 17 litre 29 litre 21 litre 25 litre 17 litre ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Original mixture = 5 litre; Milk = 3.5 litre;Water = 1.5 litre Let x litre of milk be added so thatthe mixture becomes (x + 5) litres and the percentage of water becomes 5%So, 1.5 = (x + 5) x 5/10030 = x + 5∴ x = 25 litre
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 170 169 168 171 170 169 168 171 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System (12)² - (4.4)² - (0.04)² = ? 129.6384 131.6384 124.6384 125.6384 129.6384 131.6384 124.6384 125.6384 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384
Number System What is the value of ? in the following equations ? 72/? = ?/50 40 80 100 60 40 80 100 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System Twenty times a positive integer is less than its square by 96. What is the integer? 20 30 Cannot be determined 24 20 30 Cannot be determined 24 ANSWER DOWNLOAD EXAMIANS APP
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