Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 63480 60480 61480 62480 63480 60480 61480 62480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 15 18 17 16 15 18 17 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is: 180 28 12 160 180 28 12 160 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 What is 50% of 40% of Rs. 3,450? 690 640 630 670 690 640 630 670 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 40% * 3450 = 1380then, 50 % * 1380 = 690
Number System The difference between 35% of a number and 18% of the same number is 93.5 then what is the 40% of that number ? 225 220 232 245 225 220 232 245 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Diff = (35 - 18)% of x = 93.517x/100 = 93.5Therefore, x = 550Therefore, 40% of 550 = 220
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 17/12 11/12 19/12 7/12 17/12 11/12 19/12 7/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
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