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 11/12 7/12 17/12 19/12 11/12 7/12 17/12 19/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1120 1140 1180 1160 1120 1140 1180 1160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
Number System 75% of 250 - ?% of 380 = 54.5 33 39 31 35 33 39 31 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 250 x 75/100 - 380 x ?/100 = 54.5= 250 x 75 - 380 x ?= 54.5 x 100= 18750 - 380 x ?= 5450= 380 x? = 18750 - 5450= 13300= ? = 13300/380 = 35
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2510 2508 2504 2520 2510 2508 2504 2520 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 86 91 97 94 86 91 97 94 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 625 712 824 920 625 712 824 920 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
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