Number System 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1120 1160 1180 1140 1120 1160 1180 1140 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
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 (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 42.6 54.7 42.1 45 42.6 54.7 42.1 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 60 260 120 180 60 260 120 180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
Number System The average of 7 consecutive even numbers A, B, C, D, E, F and G is 36. What is the product of ' C and 'E' ? 1168 1468 1292 1327 1168 1468 1292 1327 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E + F + G/7 = 36Therefore, D = 36Therefore, C = 34, E = 38Therefore, Product = 34 x 38 = 1292
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 8 3.5 6 None of these 8 3.5 6 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
EXAMIANS