Number System If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? 652 692 678 689 652 692 678 689 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652
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? 12, 7 11, 6 10, 5 12, 9 12, 7 11, 6 10, 5 12, 9 ANSWER DOWNLOAD EXAMIANS APP
Number System ?125÷5x ?=6265 1253 1452 124 153 1253 1452 124 153 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1253
Number System The sum of the two numbers is 12 and their product is 35. What is the sum of the reciprocals of these numbers? 7/32 1/35 35/8 12/35 7/32 1/35 35/8 12/35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,a + b = 12 and ab = 35.(a + b)/ab = 12/35= (1/b + 1/a) = 12/35Sum of reciprocals of given numbers = 12/35.
Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 750 775 725 640 750 775 725 640 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System The cost of 87 pens and 29 pencils is `783. What is the cost of 90 pens and 30 pencils ? Rs. 830 Rs. 800 Rs. 820 Rs. 810 Rs. 830 Rs. 800 Rs. 820 Rs. 810 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
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