Number System What should come in place of (?) in the following series ? 10, 19, 30, 43, 58, ? 75 77 76 78 75 77 76 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is: +9, +11, +13, +15, +17
Number System What will be the next number in the following number series ? 162 191 182 177 162 191 182 177 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
Number System The cost of 87 pens and 29 pencils is `783. What is the cost of 90 pens and 30 pencils ? Rs. 800 Rs. 810 Rs. 820 Rs. 830 Rs. 800 Rs. 810 Rs. 820 Rs. 830 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the price of a pen be 'x' and that of pencil be 'y' Then 87x + 29y = 783Multiplying eqn (i) by 30/29 we get (87x) x 30/29 + (29y) 30/29 = 783 x 30/29∴ 90x + 30y = 810
Number System A number exceeds by 25 from its 3/8 part. Then the number is? 39 40 35 32 39 40 35 32 ANSWER DOWNLOAD EXAMIANS APP
Number System The difference between 71% of a number and 46% and of the same number is 212. What is 75% of that number 724 673 845 636 724 673 845 636 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ 71% of x - 46% of x = 212∴ (71 - 46)% of x = 212∴ 25/100 x x = 212∴ x = 212 x 4 = 848∴ 75% of 848 = 848 x 75/100 = 636
Number System How many figures are required to number the pages the pages of a book containing 365 pages? 987 977 967 897 987 977 967 897 ANSWER DOWNLOAD EXAMIANS APP
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