Number System 93296 - 45874 + 20382 - 56817 = ? 109857 109877 109867 109887 109857 109877 109867 109887 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 113678 - 102691 = 109887
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2520 2410 2367 2678 2520 2410 2367 2678 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System Find the smallest number which when divided by 13 and 16 leaves respective remainders of 2 and 5. 219 197 187 207 219 197 187 207 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 'N' is the smallest number which divided by 13 and 16 leaves respective remainders of 2 and 5.Required number = (LCM of 13 and 16) - (common difference of divisors and remainders) = (208) - (11) = 197.
Number System What is the sum of all the prime numbers from 20 to 40? 117 118 119 120 117 118 119 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 325 114 104 315 325 114 104 315 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
Number System What is the sum of all the composite numbers up to 20? 128 131 130 132 128 131 130 132 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18 = 132
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