Number System 0.333 .... × 0.444 .... is equal to 0.121212 .... 1.333 .... 0.777 .... 0.148148148 .... 0.121212 .... 1.333 .... 0.777 .... 0.148148148 .... ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.148148148 ....
Number System A certain number successively divided by 2, 5 and 7 leaves remainders 1, 2 and 3 respectively. When the same number is divided by 70, what is the remainder? 34 35 36 33 34 35 36 33 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the difference between the local value of 7 and 5 in the number 2574? 403 413 570 430 403 413 570 430 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
Number System A basket contains 5 blue, 4 green and 3 red ball. If three balls are picked at random, what is the probability that at least one is red ? 34/55 37/52 31/58 32/51 34/55 37/52 31/58 32/51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Probability of having no red ball is9C3 / 12C3 = 21/55Probability of having at least one red ball is 1 - 21/55 = 34/55
Number System A laborer is engaged for 30 days on the condition that he receives Rs.25 for each day he works and is fined Rs.7.50 for each day is absent. He gets Rs.425 in all. For how many days was he absent? 9 8 10 6 9 8 10 6 ANSWER DOWNLOAD EXAMIANS APP
Number System If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is: 88 44 80 40 88 44 80 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, (x + y) = 22 and x2 + y2 = 404 Now, 2xy = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80xy = 40
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