Number System If the product of two successive positive integers is 4692, what is the smaller number ? 68 66 70 64 68 66 70 64 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 68 x 69 = 4692
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47649 47719 47619 48619 47649 47719 47619 48619 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
Number System If the fractions 1/7, 3/5, 2/5, 5/6 and 9/11 are arranged in descending order of their values, which one will be the fourth number? 4/5 1/5 2/5 3/5 4/5 1/5 2/5 3/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1/4 = 14. 3/5 = 6.2/5 = 4.5/6 = 83.9/11 = 82.Therefore, 83 > 82 > 6 > 14
Number System 480% of 350 + 620% of 275 = ? 5385 3385 2385 4385 5385 3385 2385 4385 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 480 x 350/100 + 620 x 275/100= 1680 + 1705 = 3385
Number System The sum of five consecutive numbers is 190. What is the sum of the largest and the smallest number ? 73 76 74 75 73 76 74 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4= 190= 5x + 10 = 190= 5x = 190 - 10 = 180= x = 180/5 = 36The largest number = 36 + 4 = 40∴ Required sum = 36 + 40 = 76
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 120 90 60 160 120 90 60 160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
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