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 The sum of the two digits of a two-digit number is 15 and the difference between the two digits of the two digit number is 3. What is the product of the two digits of the two digit number ? 14 None of these 54 36 14 None of these 54 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10 x + yWhere x > yAccording to the question,x + y = 15 and x - y = 3Solving both the equations,x = 9, y = 6∴ x x y = 9 x 6 = 54
Number System What is the difference between the largest and the smallest number written with 7, 7, 0, 7? 693 6093 6893 6993 693 6093 6893 6993 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the value of 8/11 of 5/7 of 96% of 28875 ? 13800 14400 12900 15400 13800 14400 12900 15400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 8 x 5 x 96 x 28875/11 x 7 x 100 = 14400
Number System The average of 7 numbers is 15, that of the first three is 6 and that of the last three is 23. What is the fourth number? 13 18 7 15 13 18 7 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4th No. = (Total of 7 Nos) - (Total of first three + total of last 3) = (15 x 7) - (6 x 3 + 23 x 3) = 105 - (18 + 69) =105 - 87 = 18
Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 11849 14849 12849 13849 11849 14849 12849 13849 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.5 x ?/100 = 4.78 x 1255/100 + 3.24 x 440/100= 59.989 + 14.256∴ ? = 74.245 x 100/0.5 = 14849
EXAMIANS