Number System 7432 ÷ 32 x ? = 2787 12 41 21 78 12 41 21 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 35 45 55 65 35 45 55 65 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System Which one of the following represents the sum of the first n even numbers? N2 N2+ 1 N(N + 1) N(N – 1) N2 N2+ 1 N(N + 1) N(N – 1) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 120 90 160 60 120 90 160 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
Number System If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ? 111 101 121 131 111 101 121 131 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore x² + (182)² = 47765Therefore x² = 47765 - (182)2 = 47765 - 33124Therefore x² = 14641, Therefore x = 121
Number System Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case. 391 384 386 388 391 384 386 388 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS