Number System Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 9 13 15 11 9 13 15 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 36 48 56 52 36 48 56 52 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System A, B, C, D and E are consecutive even numbers respectively. The average of 5 numbers is 82. What is the product of C and E ? 6363 6353 6383 6373 6363 6353 6383 6373 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4 = 5 x 82= 5x + 10 = 410 = 5x = 400= x = 400/5 = 80 ∴ A = 80C = 82and E = 84= C x E = 82 x 84 = 6383
Number System If 4 2/3 is subtracted form 10 1/2 and the difference is multiplied by 450, then what is the final answer? None of these 2675 2725 2875 None of these 2675 2725 2875 ANSWER DOWNLOAD EXAMIANS APP
Number System 68375 + 72848 - ? = 34346 + 49569 58308 59308 None of these 57308 58308 59308 None of these 57308 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
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? 1 6 4 Nothing can be said. 1 6 4 Nothing can be said. ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
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