Number System How many numbers up to 100 and 300 are divisible by 11? 21 18 20 22 21 18 20 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
Number System The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: None of these 40 30 20 None of these 40 30 20 ANSWER DOWNLOAD EXAMIANS APP
Number System What should come in place of the question mark (?) in the given number series ? 888, 888, 444, 148, ?, 7.4 37 38 36 39 37 38 36 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the missing number.Then888/888 = 1,888/444 = 2,444/148 = 3,148/x = 4= x = 148/4 = 37 and 37/7.4 = 5
Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 12 14 10 16 12 14 10 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
Number System The average of 7 consecutive even numbers A, B, C, D, E, F and G is 36. What is the product of ' C and 'E' ? 1168 1292 1468 1327 1168 1292 1468 1327 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E + F + G/7 = 36Therefore, D = 36Therefore, C = 34, E = 38Therefore, Product = 34 x 38 = 1292
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 660 720 556 515 660 720 556 515 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
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