Number System Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case. 384 388 391 386 384 388 391 386 ANSWER DOWNLOAD EXAMIANS APP
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 36 48 52 56 36 48 52 56 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System If 5/7 of a number is 145, what is 180% of that number ? 345.4 365.4 375.4 355.4 345.4 365.4 375.4 355.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System 9 3/4 + 7 2/17 - 9 1/15 = ? 9 719/1020 7 817/1020 7 719/1020 9 817/1020 9 719/1020 7 817/1020 7 719/1020 9 817/1020 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given sum = 9 + 3/4 + 7 + 2/17 - (9 + 1/15)= (9 + 7 - 9) + (3/4 + 2/17 - 1/15)= 7 + (765 + 120 - 68)/1020 = 7 817/1020
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 7 3 9 2 7 3 9 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? None of these 32 8 27 None of these 32 8 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
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