Number System If one third of 3/4 of a number is 21. Then find the number? 630 84 63 840 630 84 63 840 ANSWER DOWNLOAD EXAMIANS APP
Number System 1827÷ 36 x ?=162.4 1.9 3.2 4.3 2.6 1.9 3.2 4.3 2.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3.2
Number System The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is: 3/5 5/4 3/10 4/5 3/5 5/4 3/10 4/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1/x - x = 9/20 20x2 + 9x - 20 = 0 20x2 + 25x - 16x - 20 = 0 5x(4x + 5) -4(4x + 5) = 0(4x + 5)(5x - 4) = 0x = 4/5
Number System Simplify the 121 * 175 + 363 * 275 316600 None of these 328100 363000 316600 None of these 328100 363000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. What is the smaller number? 240 270 360 295 240 270 360 295 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the smallest number be x.Then larger number = (x + 1365)x + 1365 = 6x + 15= 5x = 1350 x = 270Smaller number = 270.
Number System 7.8% of 12.5 + 2.5% of 161 = ? 12 5 2 9 12 5 2 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5