Number System If one-seventh of a number is 55 then 40% of that number = ? 163 171 147 154 163 171 147 154 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x , Therefore, x/7 = 55Therefore, x = 55 x 7 = 385Therefore, 49% of 385 = 154
Number System The square root of 3 + “5 is : “5 /2 - 1/”2 “3 /2 - 1/”2 “3 /2 + 1/”2 “(5/2) + “(1/2) “5 /2 - 1/”2 “3 /2 - 1/”2 “3 /2 + 1/”2 “(5/2) + “(1/2) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP “(5/2) + “(1/2)
Number System The difference between a two-digit number and the number obtained after interchanging its two digits is 36. The sum of the two digits of the number is 12. Find the lowest such possible number. 48 49 47 50 48 49 47 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the digits be x and yTherefore, x + y = 12 .............(1)(10y + x) - (10x + y) Therefore, y - x = 4............. (2)Solving (1) and (2), y = 8 Therefore, x = 4There are two possible numbers 48 and 84. So the lowest no. is 48.
Number System 50% of 8/15 of 9/4 of 5/3 of 333 = ? 333 666 444 555 333 666 444 555 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333
Number System √9216 + √15376 = ? 224 220 227 231 224 220 227 231 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √9216 + √15376= 96 + 124= 220
Number System What should come in place of the question mark (?) in the given number series ? 888, 888, 444, 148, ?, 7.4 36 38 37 39 36 38 37 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the missing number.Then888/888 = 1,888/444 = 2,444/148 = 3,148/x = 4= x = 148/4 = 37 and 37/7.4 = 5
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