Number System What is the sum of all even numbers from 1 to 701? 123850 122850 122550 122500 123850 122850 122550 122500 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1192 1082 1200 1092 1192 1082 1200 1092 ANSWER DOWNLOAD EXAMIANS APP
Number System 432+2170+35=? 494 729 678 523 494 729 678 523 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 494
Number System 65 x 288 ÷ 52 = 1.8 x ? 200 190 210 180 200 190 210 180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 65x288/52x1.8 = 200
Number System A gardener wants to plant trees in his garden in such a way that the number of trees in each row should be the same. If there are 4 rows or 5 rows or 6 rows, then no tree will be left. Find the least 120 30 60 240 120 30 60 240 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The least number of trees that are required = LCM(4, 5, 6) = 60.
Number System The digit in unit's place of a three digit number is thrice the digit in ten's place & the digit in hundred's place is two-third of the digit in ten's place. If the sum of three digits of number is 14 211 221 239 215 211 221 239 215 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x.∴ Unit's digit = 3xHundered's digit = 2x/3∴ x + 3x + 2x/3 = 14= 3x + 9x + 2x = 14 x 3= 14x = 14 x 3= x = 3∴ Number = 239
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