Number System How many figures are required to number the pages the pages of a book containing 365 pages? 897 967 987 977 897 967 987 977 ANSWER DOWNLOAD EXAMIANS APP
Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 50 49 48 47 50 49 48 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
Number System What is the least number, which is perfect square but contains 2700 as its factor? 2700 1800 10800 5400 2700 1800 10800 5400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System In how many different ways can the letters of the word 'LEASE' be arranged ? 80 60 None of these 40 80 60 None of these 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60
Number System If the numberator of a fraction is increased by 50% and denominator by 20% the fraction become 9/15. What was the original fraction ? 3/5 13/25 12/25 6/7 3/5 13/25 12/25 6/7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fraction be x/yWe have 150x/120y = 9/15= x/y = 12/25
Number System How many numbers up to 100 are divisible by 7? 93 100 14 107 93 100 14 107 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 100/7 = 14 2/7 => 14 Numbers
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