Number System What is the least number, which is perfect square but contains 2700 as its factor? 1800 10800 2700 5400 1800 10800 2700 5400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System What is the sum of all even numbers from 1 to 701? 122500 122550 122850 123850 122500 122550 122850 123850 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
Number System The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is: 3/10 5/4 4/5 3/5 3/10 5/4 4/5 3/5 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 On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will be the remainder? 3 1 0 2 3 1 0 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 269 * 68 + 0 = 1829267) 18292 (273 18291 -------- 1Required number = 1.
Number System 7.8% of 12.5 + 2.5% of 161 = ? 9 2 12 5 9 2 12 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
Number System Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is: 10 4 5 6 10 4 5 6 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS