Number System 65% of 320+?=686 480 479 478 481 480 479 478 481 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65% of 320+?=686 208+?=686?=686-208?=478
Number System If a + b = 16 and ab = 68, what is the value of a² + b² ? 124 112 120 116 124 112 120 116 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP a + b = 16 Therefore, (a+b)² = (16)² = 256 a² + b² + 2ab = 256Therefore, a² + b² = 256 - 2 x 68Therefore, a² + b² = 256 - 136 = 120
Number System A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is: 24 30 22 27 24 30 22 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 27
Number System What is the difference between the local values of 3 in the number 53403? 3030 3003 2997 0 3030 3003 2997 0 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System ind the number, difference between number and its 3/5 is 50 123 120 124 125 123 120 124 125 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 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? 8 6 10 9 8 6 10 9 ANSWER DOWNLOAD EXAMIANS APP
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