Number System 6.4 x 8.5 x 25/3.2 x 12.5 = ? 5.6 4.5 3.4 2.3 5.6 4.5 3.4 2.3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 6.4 x 8.5 x 2.5/3.2 x 12.5 = 3.4
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 ? None of these 36 14 54 None of these 36 14 54 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 148 x 3.75 x 4 = 111 x ? 19 20 17 24 19 20 17 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 148 x 3.75 x 4/111 = 20
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 169 170 171 168 169 170 171 168 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System If 5/7 of a number is 145, what is 180% of that number ? 365.4 375.4 355.4 345.4 365.4 375.4 355.4 345.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System What least number shall be added to 4700 to make it a perfect square ? 71 81 91 61 71 81 91 61 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.
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