Number System The square root of 3 + “5 is : “(5/2) + “(1/2) “5 /2 - 1/”2 “3 /2 - 1/”2 “3 /2 + 1/”2 “(5/2) + “(1/2) “5 /2 - 1/”2 “3 /2 - 1/”2 “3 /2 + 1/”2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP “(5/2) + “(1/2)
Number System On dividing number by 5, we get 3 as remainder. What will be the remainder when the square of this number is divided by 5? 0 2 4 1 0 2 4 1 ANSWER DOWNLOAD EXAMIANS APP
Number System In a pair of fractions, fraction A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A? 1/25 Data inadequate 1/5 2/5 1/25 Data inadequate 1/5 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A = 2B => B = 1/2 A, so, AB = 2/25 1/2 A2 = 2/25A2 = 4/25 A = 2/5
Number System 728.038 x 54.978 - 72.016 x 85.250 = ? 33900 43900 53900 23900 33900 43900 53900 23900 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 728 x 55 - 72 x 85.25 = 40040 - 6138 = 339900
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 171 168 169 170 171 168 169 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
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 ? 19 years 20 years 17 years 18 years 19 years 20 years 17 years 18 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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