Number System Complete the series : 11, 12, 17, 18, 23, 24 ... 14 30 None of these 12 14 30 None of these 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP None of these
Number System The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is? 6 Nothing can be said. 1 4 6 Nothing can be said. 1 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
Number System What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4 29 33 35 37 29 33 35 37 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2678 2520 2367 2410 2678 2520 2367 2410 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
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 1327 1292 1168 1468 1327 1292 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 Find the number of factors of 300 excluding 1 and itself. 15 16 14 18 15 16 14 18 ANSWER DOWNLOAD EXAMIANS APP
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