Number System Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is: 6 4 5 10 6 4 5 10 ANSWER DOWNLOAD EXAMIANS APP
Number System The average of five consecutive even numbers A, B, C, D and E is 54. What is the product of'B' and 'E' ? 2871 3016 1456 4098 2871 3016 1456 4098 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because, The even numbers are consecutive and their average is 54.∴ The number C will be 54.∴ A = 50, B = 52, D = 56, E = 58B x E = 52 x 58 = 3016
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 48 56 52 36 48 56 52 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System 480% of 350 + 620% of 275 = ? 4385 3385 2385 5385 4385 3385 2385 5385 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 480 x 350/100 + 620 x 275/100= 1680 + 1705 = 3385
Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 91 94 86 97 91 94 86 97 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is? 6 1 4 Nothing can be said. 6 1 4 Nothing can be said. ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
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