Number System In how many different ways can the letters of the word 'LEASE' be arranged ? 60 80 40 None of these 60 80 40 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60
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' ? 1468 1292 1168 1327 1468 1292 1168 1327 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 If the sum of five consecutive even numbers A, B, C, D and E is 130, what is the product of A and E ? 660 720 840 780 660 720 840 780 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the consecutive even numbers be A = 2x, B = 2x + 2, C = 2x + 4, D = 2x + 6 and E = 2x + 8= A + B + C + D + E = 130= 10x + 20 = 130∴ x = 130 - 20/10 = 11Therefore, product of A and E= 22 x 30 = 660
Number System Two numbers have a H.C.F of 16 and a product of two numbers is 2560. Find the L.C.M of the two numbers? 140 170 150 160 140 170 150 160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP L.C.M of two numbers is given by(Product of the two numbers) / (H.C.F of the two numbers) = 2560/16 = 160.
Number System 63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ? 142.587 143.587 141.587 140.587 142.587 143.587 141.587 140.587 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 312.112 - 170.525 = 141.587
Number System Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number? 34 78 65 23 34 78 65 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65
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