Number System On dividing number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder? 5 6 4 7 5 6 4 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the number and y be the quotient. Then, x = 357 * y + 39= (17 * 21 * y) + (17 * 2) + 5= 17 * (21y + 2) + 5.Required remainder = 5.
Number System The average of 7 consecutive even numbers A, B, C, D, E, F and G is 36. What is the product of ' C and 'E' ? 1168 1327 1292 1468 1168 1327 1292 1468 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E + F + G/7 = 36Therefore, D = 36Therefore, C = 34, E = 38Therefore, Product = 34 x 38 = 1292
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 19 years 18 years 17 years 20 years 19 years 18 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
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 Of the three numbers, second is twice the first and is also thrice the third. If the average of the three numbers is 44, the largest number is 44 56 72 38 44 56 72 38 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 72
Number System 3√103820 x 3√274620 = ? 3055 3035 3045 3065 3055 3035 3045 3065 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055
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