Number System If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is: 77/73 93/77 83/77 73/77 77/73 93/77 83/77 73/77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 73/77
Number System 7.8% of 12.5 + 2.5% of 161 = ? 9 12 2 5 9 12 2 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 382 378 343 396 382 378 343 396 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System √9216 + √15376 = ? 224 220 231 227 224 220 231 227 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √9216 + √15376= 96 + 124= 220
Number System What is the sum of all even numbers from 1 to 701? 122850 122500 123850 122550 122850 122500 123850 122550 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
Number System On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is: 11 12 13 10 11 12 13 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Clearly, (2272 - 875) = 1397, is exactly divisible by N.Now. 1397 = 11 * 127The required 3-digit number is 127, the sum of whose digit is 10.