Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 641.68 631.68 651.68 621.68 641.68 631.68 651.68 621.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
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? 9 3 5 7 9 3 5 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System What is the least number to be subtracted from 696 to make it a perfect square? 71 20 16 1 71 20 16 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The numbers less than 696 and are squares of certain numbers are 676, 625.The least number that should be subtracted from 696 to make it perfect square = 696 - 676 = 20.
Number System The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is: 5/4 4/5 3/5 3/10 5/4 4/5 3/5 3/10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1/x - x = 9/20 20x2 + 9x - 20 = 0 20x2 + 25x - 16x - 20 = 0 5x(4x + 5) -4(4x + 5) = 0(4x + 5)(5x - 4) = 0x = 4/5
Number System What is 50% of 40% of Rs. 3,450? 690 670 640 630 690 670 640 630 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 40% * 3450 = 1380then, 50 % * 1380 = 690
Number System How many numbers up to 100 and 300 are divisible by 11? 22 20 18 21 22 20 18 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
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