Number System In how many different ways can the letters of the word TEST' be arranged ? 16 8 10 12 16 8 10 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12
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 In a division sum, the quotient is 120, the divisor 456 and the remainder 333, find the dividend? 56053 5553 50553 55053 56053 5553 50553 55053 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 120 * 456 + 333 = 55053
Number System Sum of two consecutive even terms lacks by 98 from their product. Find the sum of these number 18 32 None 24 18 32 None 24 ANSWER DOWNLOAD EXAMIANS APP
Number System Which one of the following represents the sum of the first n even numbers? N2+ 1 N(N – 1) N(N + 1) N2 N2+ 1 N(N – 1) N(N + 1) N2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
Number System (12)² - (4.4)² - (0.04)² = ? 124.6384 129.6384 125.6384 131.6384 124.6384 129.6384 125.6384 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
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