Number System What is the difference between the largest and the smallest number written with 7, 7, 0, 7? 6993 6893 6093 693 6993 6893 6093 693 ANSWER DOWNLOAD EXAMIANS APP
Number System In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, the dividend is: 6890 2568 5336 9865 6890 2568 5336 9865 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5336
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? 13 15 18 7 13 15 18 7 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 If the difference between a number and two-fifths of that number is 45 what is the number ? 77 75 78 76 77 75 78 76 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 170 168 171 169 170 168 171 169 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ? 1760 4589 2476 3289 1760 4589 2476 3289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E/5 = 42∴ C = 42, ∴ B = 40, ∴ D = 44∴ B x D = 40 x 44 = 1760
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