Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 160 140 240 180 160 140 240 180 ANSWER DOWNLOAD EXAMIANS APP
Number System Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case. 386 388 384 391 386 388 384 391 ANSWER DOWNLOAD EXAMIANS APP
Number System In a fraction, twice the numerator is two more than the denominator. If 3 is added to the numerator and the denominator each, then the resultant fraction will be 2/3 .What was the original fraction 7/12 11/12 17/12 19/12 7/12 11/12 17/12 19/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is: 160 180 12 28 160 180 12 28 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.
Number System Sum of square of first number and cube of second number together is 568. Also square of the second number is 15 less than square of 8. What is the value of three-fifth of the first number ? 6 7 9 8 6 7 9 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the first number be x and the second number be y.∴ y² = 82 - 15 = 64 - 15 = 49∴ y = 7∴ x² + 73 = 568= x² + 343 = 568= x² + 568 - 343 = 225∴ x = √225 = 15∴ 15 x 3/5 = 9
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 24 21 27 36 24 21 27 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
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