Number System In a two-digit number, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is: 46 42 26 24 46 42 26 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x. Then, unit's digit = x + 2. Number = 10x + (x + 2) = 11x + 2 Sum of digits = x + (x + 2) = 2x + 2 (11x + 2)(2x + 2) = 144 2x2 + 26x - 140 = 0 (x - 2)(11x + 35) = 0 x = 2Hence, required number = 11x + 2 = 24.
Number System 1827÷ 36 x ?=162.4 3.2 1.9 4.3 2.6 3.2 1.9 4.3 2.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3.2
Number System 65% of 320+?=686 481 480 478 479 481 480 478 479 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65% of 320+?=686 208+?=686?=686-208?=478
Number System What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 43893 70983 43883 43983 43893 70983 43883 43983 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
Number System In how many different ways can the letters of the word TEST' be arranged ? 12 16 10 8 12 16 10 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12
Number System Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers? 12, 9 12, 7 11, 6 10, 5 12, 9 12, 7 11, 6 10, 5 ANSWER DOWNLOAD EXAMIANS APP
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