Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 343 396 378 382 343 396 378 382 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System Simplify the 121 * 175 + 363 * 275 None of these 328100 316600 363000 None of these 328100 316600 363000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System What is 25/2% of 482 times of 183 ? 11050.75 11025.75 12025.75 12025.50 11050.75 11025.75 12025.75 12025.50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 25/2% of [482 x 183]= 25/2% of 88206= 25/2 x 88206 / 100= 88206 / 8= 11025.75
Number System A laborer is engaged for 30 days on the condition that he receives Rs.25 for each day he works and is fined Rs.7.50 for each day is absent. He gets Rs.425 in all. For how many days was he absent? 6 8 10 9 6 8 10 9 ANSWER DOWNLOAD EXAMIANS APP
Number System A bag contains eighteen 25-paise coins, seventeen 50-paise coins, twentytwo one-rupee coins, nine 2-rupee coins and three 5-rupee coins. What is the total amount in the bag (Ans in rupees) ? Rs. 62 Rs. 79 Rs. 74 Rs. 68 Rs. 62 Rs. 79 Rs. 74 Rs. 68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total = 18/7 + 17/2 + 22 + 9 x 2 + 3 x 5 = 4.5 + 8.5 + 22 + 18 + 15 = Rs 68
Number System Which one of the following represents the sum of the first n even numbers? N2+ 1 N2 N(N + 1) N(N – 1) N2+ 1 N2 N(N + 1) N(N – 1) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
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