Number System 450% of a number is 4725. What is 82% of that number ? 841 851 861 871 841 851 861 871 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 450/100 = 4725= x = 4725 x 100/450 = 1050∴ 82% of 1050 = 1050 x 82/100= 861
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 56 52 36 48 56 52 36 48 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System If (47)² is added to the square of a number the answer thus obtained is 2290. What is the number ? 9 8 10 7 9 8 10 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, x² + (47)² = 2290Therefore, x² = 2290 - 2209 = 81Therefore, x = 9
Number System 56.21 +2.36+5.41 —21.4+1.5=? 34.08 64.08 44.08 54.08 34.08 64.08 44.08 54.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
Number System What is the least number to be subtracted from 696 to make it a perfect square? 20 71 16 1 20 71 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 What will be the next number in the following number series ? 162 182 191 177 162 182 191 177 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
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