Number System What is 50% of 40% of Rs. 3,450? 670 690 630 640 670 690 630 640 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 40% * 3450 = 1380then, 50 % * 1380 = 690
Number System A number consists of two digits. If the digits interchange places and the new number is added to the original number, then the resulting number will be divisible by: 11 3 5 9 11 3 5 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x and unit's digit be y. Then, number 10x + y.Number obtained by interchanging the digits = 10y + x.(10x + y) + (10y + x) = 11(x + y)which is divisible by 11.
Number System Twenty times a positive integer is less than its square by 96. What is the integer? Cannot be determined 20 30 24 Cannot be determined 20 30 24 ANSWER DOWNLOAD EXAMIANS APP
Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 5/12 25/144 12/5 144/25 5/12 25/144 12/5 144/25 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 sum of the numbers is 264. If the first number be twice the second and third number be one-third of the first, then the second number is: 54 84 48 72 54 84 48 72 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the second number be x. Then, first number = 2x and third number = 2x/3.2x + x + 2x/3 = 26411x/3 = 264x = 72
Number System If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is: 28 12 160 180 28 12 160 180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, x + y = 20 and x - y = 8x2 - y2 = (x + y)(x - y) = 20 * 8 = 160.
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