Number System The digit in unit's place of a three digit number is thrice the digit in ten's place & the digit in hundred's place is two-third of the digit in ten's place. If the sum of three digits of number is 14 215 221 211 239 215 221 211 239 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x.∴ Unit's digit = 3xHundered's digit = 2x/3∴ x + 3x + 2x/3 = 14= 3x + 9x + 2x = 14 x 3= 14x = 14 x 3= x = 3∴ Number = 239
Number System Four-fifth of a number is 10 more than two-third of the same number. What is the number? 35 75 91 89 35 75 91 89 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 84 21 42 24 84 21 42 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System √9216 + √15376 = ? 227 224 231 220 227 224 231 220 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √9216 + √15376= 96 + 124= 220
Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 510 640 860 720 510 640 860 720 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total six letters are there and hence the number of arrangements = 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System (4 86%of 6500) ÷ 36 =? 677.5 777.5 977.5 877.5 677.5 777.5 977.5 877.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 877.5
EXAMIANS