Number System In a pair of fractions, fraction A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A? Data inadequate 1/25 1/5 2/5 Data inadequate 1/25 1/5 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A = 2B => B = 1/2 A, so, AB = 2/25 1/2 A2 = 2/25A2 = 4/25 A = 2/5
Number System 2536+4851—?=3450+313 4567 6784 3624 5243 4567 6784 3624 5243 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 36 56 48 52 36 56 48 52 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System The Twenty-First Century will start on January 1 in the year 2000 2101 2001 2100 2000 2101 2001 2100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2001
Number System What is a two-digit number if the ratio of the digit at ten's place to the digit at unit's place is 4 : 3 ? (I) The sum of the digits of a two-digit number is 14. (II) The digit at unit place is 75% o If the data in statement (II) alone is sufficient to answer the question, while that in statement (I) alone is not sufficient. If the data either in statement (I) alone or in statement (II) alone is sufficient to answer the question. If the data even in both statements (I) and (II) together is not sufficient to answer the question. If the data in statement (I) alone is sufficient to answer the question while that in statement (II) alone is not sufficient. If the data in statement (II) alone is sufficient to answer the question, while that in statement (I) alone is not sufficient. If the data either in statement (I) alone or in statement (II) alone is sufficient to answer the question. If the data even in both statements (I) and (II) together is not sufficient to answer the question. If the data in statement (I) alone is sufficient to answer the question while that in statement (II) alone is not sufficient. ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y∴ 3x = 4y ......(1)From (I),x + y = 14 .....(2)Solving equations (1) and (2),x = 8, y = 6∴ Number = 86 From (II)y = 75/100 x x ∴ 3x = 4y.Which is the same as eqn (1)
Number System What should come in the place of question mark (?) in the number series given below? 158 159 160 157 158 159 160 157 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 160
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