Number System The sum of five consecutive numbers is 190. What is the sum of the largest and the smallest number ? 75 74 76 73 75 74 76 73 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 A man engaged a servant on the condition that he would pay him Rs.900 and a uniform after one year service. He served only for 9 months and received uniform and Rs.650, find the price of the uniform? Rs.85 Rs.100 Rs.80 Rs.90 Rs.85 Rs.100 Rs.80 Rs.90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9/12 = 3/4 * 900 = 675 650 ------------- 251/4 -------- 251 --------- ? => Rs.100
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: 4 6 5 10 4 6 5 10 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the sum of all the numbers between 300 and 1000 which are divisible by 179? 2506 2607 2517 2527 2506 2607 2517 2527 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 358/179 ….. 895/179179(2 + 3 + 4 + 5) => 2506
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 164 168 162 170 164 168 162 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 388 296 344 252 388 296 344 252 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four numbers be x, x + 2, x + 4 and x + 6.=> x + x + 2 + x + 4 + x + 6 = 36=> 4x + 12 = 36 => x = 6The numbers are 6, 8, 10 and 12.Sum of their squares = 62 + 82 + 102 + 122 = 36 + 64 + 100 + 144 = 344.
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