Number System What is the least number, which is perfect square but contains 2700 as its factor? 10800 5400 2700 1800 10800 5400 2700 1800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, the dividend is: 2568 9865 6890 5336 2568 9865 6890 5336 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5336
Number System What is the remainder when 263251 is divided by 9? 3 8 6 1 3 8 6 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP If the sum of the digits of a number is divisible by 9, the number will be divisible by 9.2 + 6 + 3 + 2 + 5 + 1 = 19The nearest multiple of 9 is 18.19 - 18 = 1.
Number System If (47)² is added to the square of a number the answer thus obtained is 2290. What is the number ? 7 9 10 8 7 9 10 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, x² + (47)² = 2290Therefore, x² = 2290 - 2209 = 81Therefore, x = 9
Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 343 382 396 378 343 382 396 378 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System {(742)² ÷ 36} ÷ 2 = ? 420.5 423.5 421.5 422.5 420.5 423.5 421.5 422.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
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