Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 9 2 3 7 9 2 3 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System On dividing number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder? 6 5 7 4 6 5 7 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the number and y be the quotient. Then, x = 357 * y + 39= (17 * 21 * y) + (17 * 2) + 5= 17 * (21y + 2) + 5.Required remainder = 5.
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 120 112 124 116 120 112 124 116 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a + b = 16 Therefore, (a+b)² = (16)² = 256 a² + b² + 2ab = 256Therefore, a² + b² = 256 - 2 x 68Therefore, a² + b² = 256 - 136 = 120
Number System The difference between 35% of a number and 18% of the same number is 93.5 then what is the 40% of that number ? 232 220 245 225 232 220 245 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Diff = (35 - 18)% of x = 93.517x/100 = 93.5Therefore, x = 550Therefore, 40% of 550 = 220
Number System Find the least value of 3x + 4y if x2y3 = 6. 10 3 7 6 10 3 7 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System The average of 7 numbers is 15, that of the first three is 6 and that of the last three is 23. What is the fourth number? 7 18 13 15 7 18 13 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4th No. = (Total of 7 Nos) - (Total of first three + total of last 3) = (15 x 7) - (6 x 3 + 23 x 3) = 105 - (18 + 69) =105 - 87 = 18
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