Number System In how many different ways can the letters of the word 'LEASE' be arranged ? 60 None of these 80 40 60 None of these 80 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60
Number System √2304 x √? = 2832 3381 3581 3481 3681 3381 3581 3481 3681 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √2304 x √? = 2832= 48 x √? = 2832= √? = 2832/48 = 59∴? = 59 x 59 = 3481
Number System 50% of 8/15 of 9/4 of 5/3 of 333 = ? 555 666 444 333 555 666 444 333 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333
Number System The difference between a number and its three-fifth is 50. What is the number? 125 75 None of these 100 125 75 None of these 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.
Number System Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers? 65, 15 62, 18 60, 20 64, 16 65, 15 62, 18 60, 20 64, 16 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum of the ages of a son and father is 65 years. After 5 years the age of father will be double of the age of son. What is the age of son ? 18 years 19 years 20 years 17 years 18 years 19 years 20 years 17 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the age of the son be x and the age of the father be y.Therefore, x + y = 65 ..........(i)or, 2 x (x + 5) = (y + 5)or, 2x + 10 = y + 5or, 2x - y = 5 ...................(ii)From equations (i) and (ii), x = 20, y = 45
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