Number System If 35% of a number is 899.5, what is 68% of that number ? 1547.6 2247.6 1747.6 1847.6 1547.6 2247.6 1747.6 1847.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4 33 29 35 37 33 29 35 37 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4
Number System (1024—263—233)÷(986—764— 156) =? 10 None of these 6 8 10 None of these 6 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System Twenty times a positive integer is less than its square by 96. What is the integer? Cannot be determined 24 30 20 Cannot be determined 24 30 20 ANSWER DOWNLOAD EXAMIANS APP
Number System In how many different ways can the letters of word "COLLEGE" be arranged ? 1300 1280 1260 1240 1300 1280 1260 1240 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 7!/2!2! = 1260(∵ L and E come twice)
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 ? 20 years 18 years 17 years 19 years 20 years 18 years 17 years 19 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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