Number System One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 7 5 3 9 7 5 3 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System The cost of 87 pens and 29 pencils is `783. What is the cost of 90 pens and 30 pencils ? Rs. 820 Rs. 810 Rs. 800 Rs. 830 Rs. 820 Rs. 810 Rs. 800 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 Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number 7.5 15 5 4 7.5 15 5 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5
Number System Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers? 11, 6 12, 7 10, 5 12, 9 11, 6 12, 7 10, 5 12, 9 ANSWER DOWNLOAD EXAMIANS APP
Number System 5525 ÷ 17 = √? 112225 105625 99225 93025 112225 105625 99225 93025 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √? = 5525/17 = 325∴ ? = (325)² = 105625
Number System 1827÷ 36 x ?=162.4 2.6 1.9 4.3 3.2 2.6 1.9 4.3 3.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3.2
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