Number System (12.11)2 + (?)2 = 732.2921 17.2 24.2 20.2 14.2 17.2 24.2 20.2 14.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System Let R = qs—4. When s=8, R=16. When s=10, R is equal to 20 21 23 22 20 21 23 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 36 52 48 56 36 52 48 56 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2367 2678 2520 2410 2367 2678 2520 2410 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System How many numbers up to 100 and 300 are divisible by 11? 20 18 22 21 20 18 22 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 325 315 104 114 325 315 104 114 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114
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