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. 91 97 94 86 91 97 94 86 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 621.68 631.68 641.68 651.68 621.68 631.68 641.68 651.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
Number System What is the sum of all the numbers between 300 and 1000 which are divisible by 179? 2527 2517 2506 2607 2527 2517 2506 2607 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 358/179 ….. 895/179179(2 + 3 + 4 + 5) => 2506
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 84 83 81 82 84 83 81 82 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System The sum of the two numbers is 12 and their product is 35. What is the sum of the reciprocals of these numbers? 1/35 35/8 7/32 12/35 1/35 35/8 7/32 12/35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,a + b = 12 and ab = 35.(a + b)/ab = 12/35= (1/b + 1/a) = 12/35Sum of reciprocals of given numbers = 12/35.
Number System The sum of 8 consecutive odd numbers is 656. Also average of four consecutive even numbers is 87. What is the sum of the smallest odd number and second largest even number ? 158 167 160 163 158 167 160 163 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Average of 8 consecutive odd numbers = 656/8 = 82∴ Fourth number = 82 - 1 = 81∴ First numbers = 75Average of 4 even numbers = 87∴ Second even number = 87 - 1 = 86Second largest even number = 88∴ Required sum = 75 + 88 = 163
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