Number System The average of 7 numbers is 15, that of the first three is 6 and that of the last three is 23. What is the fourth number? 18 7 15 13 18 7 15 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4th No. = (Total of 7 Nos) - (Total of first three + total of last 3) = (15 x 7) - (6 x 3 + 23 x 3) = 105 - (18 + 69) =105 - 87 = 18
Number System What is the difference between the local value of 7 and 5 in the number 2574? 430 570 403 413 430 570 403 413 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
Number System 2/11 of 3/7 of 8/13 of 12012 = ? 449 241 576 321 449 241 576 321 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 2 x 3 x 8 x 12012/11 x 7 x 13 = 576
Number System What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 234 222 204 210 234 222 204 210 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Avg = 173 + 192 + 198 + 204 + 211 + 223 + 227/7 = 1428/7 = 204
Number System (2560 x 1.4) +(7400 x 0.6) =? 9160 8024 6543 7234 9160 8024 6543 7234 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System 384×12×2=? 7487 9216 8465 6123 7487 9216 8465 6123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
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