Number System ind the number, difference between number and its 3/5 is 50 125 120 123 124 125 120 123 124 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number = x,Then, x-(3/5)x = 50,=> (2/5)x = 50 => 2x = 50*5,=> x = 125
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1192 1200 1082 1092 1192 1200 1082 1092 ANSWER DOWNLOAD EXAMIANS APP
Number System √(17)² + (17)² + (5)² - 2 = ? 18 16 19 17 18 16 19 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
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: 5 4 10 6 5 4 10 6 ANSWER DOWNLOAD EXAMIANS APP
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 625 824 920 712 625 824 920 712 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
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? 9 8 10 6 9 8 10 6 ANSWER DOWNLOAD EXAMIANS APP
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