Number System If 35% of a number is 899.5, what is 68% of that number ? 1547.6 1747.6 2247.6 1847.6 1547.6 1747.6 2247.6 1847.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System In how many different ways can the letters of the word CORPORATION be arranged ? None of these 1326400 3326400 2326400 None of these 1326400 3326400 2326400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400
Number System The sum of five consecutive numbers is 190. What is the sum of the largest and the smallest number ? 75 74 73 76 75 74 73 76 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4= 190= 5x + 10 = 190= 5x = 190 - 10 = 180= x = 180/5 = 36The largest number = 36 + 4 = 40∴ Required sum = 36 + 40 = 76
Number System Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case. 388 384 391 386 388 384 391 386 ANSWER DOWNLOAD EXAMIANS APP
Number System Sum of square of first number and cube of second number together is 568. Also square of the second number is 15 less than square of 8. What is the value of three-fifth of the first number ? 7 9 6 8 7 9 6 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the first number be x and the second number be y.∴ y² = 82 - 15 = 64 - 15 = 49∴ y = 7∴ x² + 73 = 568= x² + 343 = 568= x² + 568 - 343 = 225∴ x = √225 = 15∴ 15 x 3/5 = 9
Number System How many numbers up to 100 and 300 are divisible by 11? 22 21 20 18 22 21 20 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
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