Number System What is the remainder when 263251 is divided by 9? 1 3 6 8 1 3 6 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP If the sum of the digits of a number is divisible by 9, the number will be divisible by 9.2 + 6 + 3 + 2 + 5 + 1 = 19The nearest multiple of 9 is 18.19 - 18 = 1.
Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 640 750 775 725 640 750 775 725 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System 6.4 x 8.5 x 25/3.2 x 12.5 = ? 5.6 3.4 2.3 4.5 5.6 3.4 2.3 4.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 6.4 x 8.5 x 2.5/3.2 x 12.5 = 3.4
Number System Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ? Rs. 4000 Rs. 5000 Rs. 2000 Rs. 3000 Rs. 4000 Rs. 5000 Rs. 2000 Rs. 3000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the amount be x.∴ X x 20/100 x 25/100 x 30/100 = 75∴ X = 75 x 5 x 4 x 10/3 = 5000
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? None 2 6 4 None 2 6 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System The simplest form of 1.5 : 2.5 is : 3 : 5 5 : 7 17 : 19 13 : 11 3 : 5 5 : 7 17 : 19 13 : 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
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