Number System Three numbers which are co-prime to one another are such that the product of the first two 551 and that of the last two is 1073. The sum of the three numbers is 85 93 110 74 85 93 110 74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 85
Number System Pick the wrong number from the given number series. 3,4,10,33,135,685,4116 33 10 135 685 33 10 135 685 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The correct number is 136.3 x 1 + 1 = 44 x 2 + 2 = 1010 x 3 + 3 = 3333 x 4 + 4 = 136136 x 5 + 5 = 685685 x 6 + 6 = 4116
Number System Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 27 36 18 30 27 36 18 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 52 56 48 36 52 56 48 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ? 25.84 24.84 27.84 21.84 25.84 24.84 27.84 21.84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84
Number System If one-seventh of a number is 55 then 40% of that number = ? 171 147 154 163 171 147 154 163 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x , Therefore, x/7 = 55Therefore, x = 55 x 7 = 385Therefore, 49% of 385 = 154
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