Number System (12)² - (4.4)² - (0.04)² = ? 129.6384 125.6384 124.6384 131.6384 129.6384 125.6384 124.6384 131.6384 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384
Number System If one third of 3/4 of a number is 21. Then find the number? 84 630 840 63 84 630 840 63 ANSWER DOWNLOAD EXAMIANS APP
Number System If the difference between a number and its three fifths is 62, what is the number ? 175 145 155 165 175 145 155 165 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x - 3x/5 = 62or x = 62 x 5/2 = 155
Number System 9 3/4 + 7 2/17 - 9 1/15 = ? 9 719/1020 7 719/1020 9 817/1020 7 817/1020 9 719/1020 7 719/1020 9 817/1020 7 817/1020 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given sum = 9 + 3/4 + 7 + 2/17 - (9 + 1/15)= (9 + 7 - 9) + (3/4 + 2/17 - 1/15)= 7 + (765 + 120 - 68)/1020 = 7 817/1020
Number System Find the least value of 3x + 4y if x2y3 = 6. 7 3 10 6 7 3 10 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System If (47)² is added to the square of a number the answer thus obtained is 2290. What is the number ? 8 10 7 9 8 10 7 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, x² + (47)² = 2290Therefore, x² = 2290 - 2209 = 81Therefore, x = 9
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