Number System Find the least value of 3x + 4y if x2y3 = 6. 7 6 3 10 7 6 3 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System What is 846 times 323 ? 273258 283298 293798 264258 273258 283298 293798 264258 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 725 775 750 640 725 775 750 640 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 17 13 11 15 17 13 11 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
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. 94 86 97 91 94 86 97 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System The average of five consecutive even numbers, p, q, r, s and t is 40. What is the product of 'r' and 's' ? 1780 1480 1680 1580 1780 1480 1680 1580 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 2, x + 4, x + 6, and x + 8Avg = x + x + 2 + x + 4 + x + 6 + x + 8/5 = 40Therefore, 5x + 20 = 200Therefore, x = 180/5 = 36Therefore, r = x + 4 = 40 s = x + 6 = 42Therefore, Product = 1680
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